Author: Kimball A. Milton
Publisher: World Scientific
ISBN: 9814289930
Category : Science
Languages : en
Pages : 563
Book Description
Casimir forces between spheres and loop integrals / J. Babington -- Analytic corrections to the electromagnetic Casimir interaction between a sphere and a plate at short distances / M. Bordag and V. Nikolaev -- Casimir physics : geometry, shape and material / T. Emig -- Semitransparent pistons / P. Morales and K. Kirsten -- Using boundary methods to compute the Casimir energy / F.C. Lombardo, F.D. Mazzitelli and P.I. Villar -- Electromagnetic non-contact gears : prelude / P. Parashar [und weitere] -- The scattering approach to the Casimir force / S. Reynaud [und weitere] -- Scalar Casimir energies for separable coordinate systems : application to semi-transparent planes in an annulus / J. Wagner, K.A. Milton and K. Kirsten -- Demonstrating the strong geometry dependence of the Casimir force on a surface with deep, nanoscale corrugations / H.B. Chan [und weitere] -- New results for the Casimir interaction : sample characterization and low temperature measurements / R.S. Decca, D. Lopez and E. Osquiguil -- Casimir force experiments in air : two birds with one stone / S. De Man [und weitere] -- Experimental features of the recent lateral Casimir force measurement / H.-C. Chiu and U. Mohideen -- Lateral Casimir-Polder force measurement using Bose Einstein condensates / G.A. Moreno -- Repulsive Casimir and van der Waals forces : from measurements to future technologies / J.N. Munday and F. Capasso -- Macroscopic quantum vacuum and microscopic gravitation / R. Onofrio -- The PVLAS experiment and its results : probing the quantum vacuum with polarized light and magnetic fields / F. Della Valle [und weitere] -- Thermal Casimir effect for conducting plates and the Bohr-van Leeuwen theorem / G. Bimonte -- Electromagnetic Casimir effect in wedge geometry and the energy-momentum tensor in media / I. Brevik, S.A. Ellingsen and K.A. Milton -- Casimir-Polder potential in thermal non-equilibrium / S.A. Ellingsen [und weitere] -- Geometry-temperature interplay in the Casimir effect / H. Gies and A. Weber -- Thermal effects in the magnetic Casimir-Polder interaction / H. Haakh, F. Intravaia and C. Henkel -- Mode contributions to the Casimir effect / F. Intravaia and C. Henkel -- Thermal Casimir force between magnetic materials / G.L. Klimchitskaya, B. Geyer and V.M. Mostepanenko -- The Casimir effect and the foundations of statistical physics / V.M. Mostepanenko and G.L. Klimchitskaya -- Casimir-Lifshitz forces and entropy / L.P. Pitaevskii -- The thermal Casimir effect : saturation / B.E. Sernelius -- Finite temperature Casimir effect in the presence of extra dimensions / L.P. Teo and K. Kirsten -- The role of magnetoplasmons in Casimir force calculations / R. Esquivel-Sirvent [und weitere] -- Suspended graphene films and their Casimir interaction with ideal conductor / I.V. Fialkovsky -- Casimir energy of finite width mirrors : renormalization, self-interaction limit and Lifshitz formula / I.V. Fialkovsky, V.N. Markov and Yu. M. Pis'mak -- Role of surface states in the Casimir force between semiconducting films / M. Govoni, C. Calandra and A. Benassi -- On the Casimir entropy between "perfect crystals" / C. Henkel and F. Intravaia -- Theory of the Casimir effect for gratings / V.N. Marachevsky
Proceedings of the Ninth Conference on Quantum Field Theory Under the Influence of External Conditions (QFEXT09)
Author: Kimball A. Milton
Publisher: World Scientific
ISBN: 9814289930
Category : Science
Languages : en
Pages : 563
Book Description
Casimir forces between spheres and loop integrals / J. Babington -- Analytic corrections to the electromagnetic Casimir interaction between a sphere and a plate at short distances / M. Bordag and V. Nikolaev -- Casimir physics : geometry, shape and material / T. Emig -- Semitransparent pistons / P. Morales and K. Kirsten -- Using boundary methods to compute the Casimir energy / F.C. Lombardo, F.D. Mazzitelli and P.I. Villar -- Electromagnetic non-contact gears : prelude / P. Parashar [und weitere] -- The scattering approach to the Casimir force / S. Reynaud [und weitere] -- Scalar Casimir energies for separable coordinate systems : application to semi-transparent planes in an annulus / J. Wagner, K.A. Milton and K. Kirsten -- Demonstrating the strong geometry dependence of the Casimir force on a surface with deep, nanoscale corrugations / H.B. Chan [und weitere] -- New results for the Casimir interaction : sample characterization and low temperature measurements / R.S. Decca, D. Lopez and E. Osquiguil -- Casimir force experiments in air : two birds with one stone / S. De Man [und weitere] -- Experimental features of the recent lateral Casimir force measurement / H.-C. Chiu and U. Mohideen -- Lateral Casimir-Polder force measurement using Bose Einstein condensates / G.A. Moreno -- Repulsive Casimir and van der Waals forces : from measurements to future technologies / J.N. Munday and F. Capasso -- Macroscopic quantum vacuum and microscopic gravitation / R. Onofrio -- The PVLAS experiment and its results : probing the quantum vacuum with polarized light and magnetic fields / F. Della Valle [und weitere] -- Thermal Casimir effect for conducting plates and the Bohr-van Leeuwen theorem / G. Bimonte -- Electromagnetic Casimir effect in wedge geometry and the energy-momentum tensor in media / I. Brevik, S.A. Ellingsen and K.A. Milton -- Casimir-Polder potential in thermal non-equilibrium / S.A. Ellingsen [und weitere] -- Geometry-temperature interplay in the Casimir effect / H. Gies and A. Weber -- Thermal effects in the magnetic Casimir-Polder interaction / H. Haakh, F. Intravaia and C. Henkel -- Mode contributions to the Casimir effect / F. Intravaia and C. Henkel -- Thermal Casimir force between magnetic materials / G.L. Klimchitskaya, B. Geyer and V.M. Mostepanenko -- The Casimir effect and the foundations of statistical physics / V.M. Mostepanenko and G.L. Klimchitskaya -- Casimir-Lifshitz forces and entropy / L.P. Pitaevskii -- The thermal Casimir effect : saturation / B.E. Sernelius -- Finite temperature Casimir effect in the presence of extra dimensions / L.P. Teo and K. Kirsten -- The role of magnetoplasmons in Casimir force calculations / R. Esquivel-Sirvent [und weitere] -- Suspended graphene films and their Casimir interaction with ideal conductor / I.V. Fialkovsky -- Casimir energy of finite width mirrors : renormalization, self-interaction limit and Lifshitz formula / I.V. Fialkovsky, V.N. Markov and Yu. M. Pis'mak -- Role of surface states in the Casimir force between semiconducting films / M. Govoni, C. Calandra and A. Benassi -- On the Casimir entropy between "perfect crystals" / C. Henkel and F. Intravaia -- Theory of the Casimir effect for gratings / V.N. Marachevsky
Publisher: World Scientific
ISBN: 9814289930
Category : Science
Languages : en
Pages : 563
Book Description
Casimir forces between spheres and loop integrals / J. Babington -- Analytic corrections to the electromagnetic Casimir interaction between a sphere and a plate at short distances / M. Bordag and V. Nikolaev -- Casimir physics : geometry, shape and material / T. Emig -- Semitransparent pistons / P. Morales and K. Kirsten -- Using boundary methods to compute the Casimir energy / F.C. Lombardo, F.D. Mazzitelli and P.I. Villar -- Electromagnetic non-contact gears : prelude / P. Parashar [und weitere] -- The scattering approach to the Casimir force / S. Reynaud [und weitere] -- Scalar Casimir energies for separable coordinate systems : application to semi-transparent planes in an annulus / J. Wagner, K.A. Milton and K. Kirsten -- Demonstrating the strong geometry dependence of the Casimir force on a surface with deep, nanoscale corrugations / H.B. Chan [und weitere] -- New results for the Casimir interaction : sample characterization and low temperature measurements / R.S. Decca, D. Lopez and E. Osquiguil -- Casimir force experiments in air : two birds with one stone / S. De Man [und weitere] -- Experimental features of the recent lateral Casimir force measurement / H.-C. Chiu and U. Mohideen -- Lateral Casimir-Polder force measurement using Bose Einstein condensates / G.A. Moreno -- Repulsive Casimir and van der Waals forces : from measurements to future technologies / J.N. Munday and F. Capasso -- Macroscopic quantum vacuum and microscopic gravitation / R. Onofrio -- The PVLAS experiment and its results : probing the quantum vacuum with polarized light and magnetic fields / F. Della Valle [und weitere] -- Thermal Casimir effect for conducting plates and the Bohr-van Leeuwen theorem / G. Bimonte -- Electromagnetic Casimir effect in wedge geometry and the energy-momentum tensor in media / I. Brevik, S.A. Ellingsen and K.A. Milton -- Casimir-Polder potential in thermal non-equilibrium / S.A. Ellingsen [und weitere] -- Geometry-temperature interplay in the Casimir effect / H. Gies and A. Weber -- Thermal effects in the magnetic Casimir-Polder interaction / H. Haakh, F. Intravaia and C. Henkel -- Mode contributions to the Casimir effect / F. Intravaia and C. Henkel -- Thermal Casimir force between magnetic materials / G.L. Klimchitskaya, B. Geyer and V.M. Mostepanenko -- The Casimir effect and the foundations of statistical physics / V.M. Mostepanenko and G.L. Klimchitskaya -- Casimir-Lifshitz forces and entropy / L.P. Pitaevskii -- The thermal Casimir effect : saturation / B.E. Sernelius -- Finite temperature Casimir effect in the presence of extra dimensions / L.P. Teo and K. Kirsten -- The role of magnetoplasmons in Casimir force calculations / R. Esquivel-Sirvent [und weitere] -- Suspended graphene films and their Casimir interaction with ideal conductor / I.V. Fialkovsky -- Casimir energy of finite width mirrors : renormalization, self-interaction limit and Lifshitz formula / I.V. Fialkovsky, V.N. Markov and Yu. M. Pis'mak -- Role of surface states in the Casimir force between semiconducting films / M. Govoni, C. Calandra and A. Benassi -- On the Casimir entropy between "perfect crystals" / C. Henkel and F. Intravaia -- Theory of the Casimir effect for gratings / V.N. Marachevsky
Proceedings of the Ninth Conference on Quantum Field Theory Under the Influence of External Conditions (QFEXT09)
Author: Kimball A. Milton
Publisher: World Scientific
ISBN: 981428985X
Category : Science
Languages : en
Pages : 563
Book Description
QFEXT is the leading international conference held every two years, highlighting progress in quantum vacuum energy phenomena, the Casimir effect, and related topics, both experimentally and theoretically. Most of the key players in the field are expected to be present. Thus the proceedings will be the definitive source of information on this field, which is playing an increasingly important role in nanotechnology and in understanding fundamental issues in physics such as renormalization and in the search for new physics such as fifth forces and dark energy. Proceedings of previous conferences in this series have been important, and like the conferences they summarize, have led to major progress in the two subsequent years. This is because, the fundamental aspects of quantum field theory; applications of all branches of physics, chemistry, nanoscience, and astrophysics; mathematical and experimental techniques described have wide applications and all leading groups and scientists working in this field will be represented.
Publisher: World Scientific
ISBN: 981428985X
Category : Science
Languages : en
Pages : 563
Book Description
QFEXT is the leading international conference held every two years, highlighting progress in quantum vacuum energy phenomena, the Casimir effect, and related topics, both experimentally and theoretically. Most of the key players in the field are expected to be present. Thus the proceedings will be the definitive source of information on this field, which is playing an increasingly important role in nanotechnology and in understanding fundamental issues in physics such as renormalization and in the search for new physics such as fifth forces and dark energy. Proceedings of previous conferences in this series have been important, and like the conferences they summarize, have led to major progress in the two subsequent years. This is because, the fundamental aspects of quantum field theory; applications of all branches of physics, chemistry, nanoscience, and astrophysics; mathematical and experimental techniques described have wide applications and all leading groups and scientists working in this field will be represented.
Dynamics of Josephson Junctions and Circuits
Author: Likharev
Publisher: CRC Press
ISBN: 9782881240423
Category : Science
Languages : en
Pages : 640
Book Description
"This monograph is intended to give a relatively complete review of Josephson junction dynamics as it stands in the mid-1980's. The main idea of the author is to present the reader with as many useful results as possible by the simplest means, rather than to demonstrate theoretical muscle. This is why almost all the topics requiring elaborate techniques for their analysis are shifted to the ends of the chapters and the most complex chapters, to the end of the book. Topics which are of relatively minor importance for further discussion are mainly presented in the form of 'problems' at the end of the sections." -- from Preface.
Publisher: CRC Press
ISBN: 9782881240423
Category : Science
Languages : en
Pages : 640
Book Description
"This monograph is intended to give a relatively complete review of Josephson junction dynamics as it stands in the mid-1980's. The main idea of the author is to present the reader with as many useful results as possible by the simplest means, rather than to demonstrate theoretical muscle. This is why almost all the topics requiring elaborate techniques for their analysis are shifted to the ends of the chapters and the most complex chapters, to the end of the book. Topics which are of relatively minor importance for further discussion are mainly presented in the form of 'problems' at the end of the sections." -- from Preface.
The Casimir Effect
Author: K. A. Milton
Publisher: World Scientific
ISBN: 9789812810526
Category : Science
Languages : en
Pages : 330
Book Description
In its simplest manifestation, the Casimir effect is a quantum force of attraction between two parallel uncharged conducting plates. More generally, it refers to the interaction OCo which may be either attractive or repulsive OCo between material bodies due to quantum fluctuations in whatever fields are relevant. It is a local version of the van der Waals force between molecules. Its sweep ranges from perhaps its being the origin of the cosmological constant to its being responsible for the confinement of quarks. This monograph develops the theory of such forces, based primarily on physically transparent Green''s function techniques, and makes applications from quarks to the cosmos, as well as observable consequences in condensed matter systems. It is aimed at graduate students and researchers in theoretical physics, quantum field theory, and applied mathematics. Contents: Introduction to the Casimir Effect; Casimir Force Between Parallel Plates; Casimir Force Between Parallel Dielectrics; Casimir Effect with Perfect Spherical; The Casimir Effect of a Dielectric Ball: The Equivalence of the Casimir Effect and van der Waals Forces; Application to Hadronic Physics: Zero-Point Energy in the Bag Model; Casimir Effect in Cylindrical Geometries; Casimir Effect in Two Dimensions: The Maxwell-Chern-Simons Casimir Effect; Casimir Effect on a D -dimensional Sphere; Cosmological Implications of the Casimir Effect; Local Effects; Sonoluminescene and the Dynamical Casimir Effect; Radiative Corrections to the Casimir Effect; Conclusions and Outlook; Appendices: Relation of Contour Integral Method to Green''s Function Approach; Casimir Effect for a Closed String. Readership: High-energy, condensed-matter and nuclear physicists."
Publisher: World Scientific
ISBN: 9789812810526
Category : Science
Languages : en
Pages : 330
Book Description
In its simplest manifestation, the Casimir effect is a quantum force of attraction between two parallel uncharged conducting plates. More generally, it refers to the interaction OCo which may be either attractive or repulsive OCo between material bodies due to quantum fluctuations in whatever fields are relevant. It is a local version of the van der Waals force between molecules. Its sweep ranges from perhaps its being the origin of the cosmological constant to its being responsible for the confinement of quarks. This monograph develops the theory of such forces, based primarily on physically transparent Green''s function techniques, and makes applications from quarks to the cosmos, as well as observable consequences in condensed matter systems. It is aimed at graduate students and researchers in theoretical physics, quantum field theory, and applied mathematics. Contents: Introduction to the Casimir Effect; Casimir Force Between Parallel Plates; Casimir Force Between Parallel Dielectrics; Casimir Effect with Perfect Spherical; The Casimir Effect of a Dielectric Ball: The Equivalence of the Casimir Effect and van der Waals Forces; Application to Hadronic Physics: Zero-Point Energy in the Bag Model; Casimir Effect in Cylindrical Geometries; Casimir Effect in Two Dimensions: The Maxwell-Chern-Simons Casimir Effect; Casimir Effect on a D -dimensional Sphere; Cosmological Implications of the Casimir Effect; Local Effects; Sonoluminescene and the Dynamical Casimir Effect; Radiative Corrections to the Casimir Effect; Conclusions and Outlook; Appendices: Relation of Contour Integral Method to Green''s Function Approach; Casimir Effect for a Closed String. Readership: High-energy, condensed-matter and nuclear physicists."
Quantum Electrodynamics of Strong Fields
Author: Greiner W. Hold
Publisher: Springer Science & Business Media
ISBN: 1489921397
Category : Technology & Engineering
Languages : en
Pages : 896
Book Description
The NATO Advanced Study Institute on Quantum Electrodynamics of Strong Fields was held at Lahnstein on the Rhine from 15-26 June, 1981. The school was devoted to the advances, theoretical and exper imental, in the physics of strong fields made during the past decade. The topic of the first week was almost exclusively quantum electrodynamics, with discussions of symmetry breaking in the ground state, of the physics of heavy ion collisions and of precision tests of perturbative quantum electrodynamics. This was followed in the second week by the presentation of a broad range of other areas where strong fields occur, reaching from nuclear physics over quantum chromodynamics to gravitation theory and astrophysics. We were fortunate to be able to call on a body of lecturers who not only have made considerable personal contributions to these advances but who are also noted for their lecturing skills. Their dedication for their subject was readily transmitted to the stu dents resulting in a very successful school. This enthusiasm is also reflected in their contributions to these Proceedings which, as I believe, will in time become a standard source of reference for future work on the physics of strong fields and will help to spread the benefits of the school to a larger audience than those who were able to attend. I regret that the Soviet colleagues Ya. B. Zeldovich and V. S. Popov were unable to participate.
Publisher: Springer Science & Business Media
ISBN: 1489921397
Category : Technology & Engineering
Languages : en
Pages : 896
Book Description
The NATO Advanced Study Institute on Quantum Electrodynamics of Strong Fields was held at Lahnstein on the Rhine from 15-26 June, 1981. The school was devoted to the advances, theoretical and exper imental, in the physics of strong fields made during the past decade. The topic of the first week was almost exclusively quantum electrodynamics, with discussions of symmetry breaking in the ground state, of the physics of heavy ion collisions and of precision tests of perturbative quantum electrodynamics. This was followed in the second week by the presentation of a broad range of other areas where strong fields occur, reaching from nuclear physics over quantum chromodynamics to gravitation theory and astrophysics. We were fortunate to be able to call on a body of lecturers who not only have made considerable personal contributions to these advances but who are also noted for their lecturing skills. Their dedication for their subject was readily transmitted to the stu dents resulting in a very successful school. This enthusiasm is also reflected in their contributions to these Proceedings which, as I believe, will in time become a standard source of reference for future work on the physics of strong fields and will help to spread the benefits of the school to a larger audience than those who were able to attend. I regret that the Soviet colleagues Ya. B. Zeldovich and V. S. Popov were unable to participate.
From Fields to Strings
Author: Misha Shifman
Publisher: World Scientific
ISBN: 9812561145
Category : Condensed matter
Languages : en
Pages : 636
Book Description
This volume is a collection of dedicated reviews covering all aspects of theoretical high energy physics and some aspects of solid state physics. Some of the papers are broad reviews of topics that span the entire field while others are surveys of authors' personal achievements. This is the most comprehensive review collection reflecting state of the art at the end of 2004. An important and unique aspect is a special effort the authors have invested in making the presentation pedagogical
Publisher: World Scientific
ISBN: 9812561145
Category : Condensed matter
Languages : en
Pages : 636
Book Description
This volume is a collection of dedicated reviews covering all aspects of theoretical high energy physics and some aspects of solid state physics. Some of the papers are broad reviews of topics that span the entire field while others are surveys of authors' personal achievements. This is the most comprehensive review collection reflecting state of the art at the end of 2004. An important and unique aspect is a special effort the authors have invested in making the presentation pedagogical
Advanced Quantum Mechanics
Author: Freeman J. Dyson
Publisher: World Scientific
ISBN: 9814383422
Category : Science
Languages : en
Pages : 316
Book Description
Renowned physicist and mathematician Freeman Dyson is famous for his work in quantum mechanics, nuclear weapons policy and bold visions for the future of humanity. In the 1940s, he was responsible for demonstrating the equivalence of the two formulations of quantum electrodynamics OCo Richard Feynman''s diagrammatic path integral formulation and the variational methods developed by Julian Schwinger and Sin-Itiro Tomonoga OCo showing the mathematical consistency of QED. This invaluable volume comprises the legendary lectures on quantum electrodynamics first given by Dyson at Cornell University in 1951. The late theorist Edwin Thompson Jaynes once remarked, OC For a generation of physicists they were the happy medium: clearer and better motivated than Feynman, and getting to the point faster than SchwingerOCO. This edition has been printed on the 60th anniversary of the Cornell lectures, and includes a foreword by science historian David Kaiser, as well as notes from Dyson''s lectures at the Les Houches Summer School of Theoretical Physics in 1954. The Les Houches lectures, described as a supplement to the original Cornell notes, provide a more detailed look at field theory, a careful and rigorous derivation of Fermi''s Golden Rule, and a masterful treatment of renormalization and Ward''s Identity. Future generations of physicists are bound to read these lectures with pleasure, benefiting from the lucid style that is so characteristic of Dyson''s exposition.
Publisher: World Scientific
ISBN: 9814383422
Category : Science
Languages : en
Pages : 316
Book Description
Renowned physicist and mathematician Freeman Dyson is famous for his work in quantum mechanics, nuclear weapons policy and bold visions for the future of humanity. In the 1940s, he was responsible for demonstrating the equivalence of the two formulations of quantum electrodynamics OCo Richard Feynman''s diagrammatic path integral formulation and the variational methods developed by Julian Schwinger and Sin-Itiro Tomonoga OCo showing the mathematical consistency of QED. This invaluable volume comprises the legendary lectures on quantum electrodynamics first given by Dyson at Cornell University in 1951. The late theorist Edwin Thompson Jaynes once remarked, OC For a generation of physicists they were the happy medium: clearer and better motivated than Feynman, and getting to the point faster than SchwingerOCO. This edition has been printed on the 60th anniversary of the Cornell lectures, and includes a foreword by science historian David Kaiser, as well as notes from Dyson''s lectures at the Les Houches Summer School of Theoretical Physics in 1954. The Les Houches lectures, described as a supplement to the original Cornell notes, provide a more detailed look at field theory, a careful and rigorous derivation of Fermi''s Golden Rule, and a masterful treatment of renormalization and Ward''s Identity. Future generations of physicists are bound to read these lectures with pleasure, benefiting from the lucid style that is so characteristic of Dyson''s exposition.
Effective Lagrangians in Quantum Electrodynamics
Author: W. Dittrich
Publisher: Springer
ISBN: 9783662215258
Category : Science
Languages : en
Pages : 248
Book Description
Publisher: Springer
ISBN: 9783662215258
Category : Science
Languages : en
Pages : 248
Book Description
Superconductivity in Ternary Compounds II
Author: Merrill B. Maple
Publisher: Springer
ISBN: 1489937684
Category : Technology & Engineering
Languages : en
Pages : 320
Book Description
Publisher: Springer
ISBN: 1489937684
Category : Technology & Engineering
Languages : en
Pages : 320
Book Description
Quantum Field Theory and Gravity
Author: Felix Finster
Publisher: Springer Science & Business Media
ISBN: 3034800436
Category : Mathematics
Languages : en
Pages : 389
Book Description
One of the most challenging problems of contemporary theoretical physics is the mathematically rigorous construction of a theory which describes gravitation and the other fundamental physical interactions within a common framework. The physical ideas which grew from attempts to develop such a theory require highly advanced mathematical methods and radically new physical concepts. This book presents different approaches to a rigorous unified description of quantum fields and gravity. It contains a carefully selected cross-section of lively discussions which took place in autumn 2010 at the fifth conference "Quantum field theory and gravity - Conceptual and mathematical advances in the search for a unified framework" in Regensburg, Germany. In the tradition of the other proceedings covering this series of conferences, a special feature of this book is the exposition of a wide variety of approaches, with the intention to facilitate a comparison. The book is mainly addressed to mathematicians and physicists who are interested in fundamental questions of mathematical physics. It allows the reader to obtain a broad and up-to-date overview of a fascinating active research area.
Publisher: Springer Science & Business Media
ISBN: 3034800436
Category : Mathematics
Languages : en
Pages : 389
Book Description
One of the most challenging problems of contemporary theoretical physics is the mathematically rigorous construction of a theory which describes gravitation and the other fundamental physical interactions within a common framework. The physical ideas which grew from attempts to develop such a theory require highly advanced mathematical methods and radically new physical concepts. This book presents different approaches to a rigorous unified description of quantum fields and gravity. It contains a carefully selected cross-section of lively discussions which took place in autumn 2010 at the fifth conference "Quantum field theory and gravity - Conceptual and mathematical advances in the search for a unified framework" in Regensburg, Germany. In the tradition of the other proceedings covering this series of conferences, a special feature of this book is the exposition of a wide variety of approaches, with the intention to facilitate a comparison. The book is mainly addressed to mathematicians and physicists who are interested in fundamental questions of mathematical physics. It allows the reader to obtain a broad and up-to-date overview of a fascinating active research area.