Spin Squeezing and Non-linear Atom Interferometry with Bose-Einstein Condensates PDF Download
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Author: Christian Groß
Publisher: Springer Science & Business Media
ISBN: 3642256368
Category : Science
Languages : en
Pages : 123
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Book Description
Interferometry, the most precise measurement technique known today, exploits the wave-like nature of the atoms or photons in the interferometer. As expected from the laws of quantum mechanics, the granular, particle-like features of the individually independent atoms or photons are responsible for the precision limit, the shot noise limit. However this “classical” bound is not fundamental and it is the aim of quantum metrology to overcome it by employing entanglement among the particles. This work reports on the realization of spin-squeezed states suitable for atom interferometry. Spin squeezing was generated on the basis of motional and spin degrees of freedom, whereby the latter allowed the implementation of a full interferometer with quantum-enhanced precision.
Author: Christian Groß
Publisher: Springer Science & Business Media
ISBN: 3642256368
Category : Science
Languages : en
Pages : 123
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Book Description
Interferometry, the most precise measurement technique known today, exploits the wave-like nature of the atoms or photons in the interferometer. As expected from the laws of quantum mechanics, the granular, particle-like features of the individually independent atoms or photons are responsible for the precision limit, the shot noise limit. However this “classical” bound is not fundamental and it is the aim of quantum metrology to overcome it by employing entanglement among the particles. This work reports on the realization of spin-squeezed states suitable for atom interferometry. Spin squeezing was generated on the basis of motional and spin degrees of freedom, whereby the latter allowed the implementation of a full interferometer with quantum-enhanced precision.
Author: Tarik Berrada
Publisher: Springer
ISBN: 3319272330
Category : Science
Languages : en
Pages : 229
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Book Description
This thesis demonstrates a full Mach–Zehnder interferometer with interacting Bose–Einstein condensates confined on an atom chip. It relies on the coherent manipulation of atoms trapped in a magnetic double-well potential, for which the author developed a novel type of beam splitter. Particle-wave duality enables the construction of interferometers for matter waves, which complement optical interferometers in precision measurement devices, both for technological applications and fundamental tests. This requires the development of atom-optics analogues to beam splitters, phase shifters and recombiners. Particle interactions in the Bose–Einstein condensate lead to a nonlinearity, absent in photon optics. This is exploited to generate a non-classical state with reduced atom-number fluctuations inside the interferometer. This state is then used to study the interaction-induced dephasing of the quantum superposition. The resulting coherence times are found to be a factor of three longer than expected for coherent states, highlighting the potential of entanglement as a resource for quantum-enhanced metrology.
Author: G.M. Tino
Publisher: IOS Press
ISBN: 161499448X
Category : Science
Languages : en
Pages : 807
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Book Description
Since atom interferometers were first realized about 20 years ago, atom interferometry has had many applications in basic and applied science, and has been used to measure gravity acceleration, rotations and fundamental physical quantities with unprecedented precision. Future applications range from tests of general relativity to the development of next-generation inertial navigation systems. This book presents the lectures and notes from the Enrico Fermi school "Atom Interferometry", held in Varenna, Italy, in July 2013. The aim of the school was to cover basic experimental and theoretical aspects and to provide an updated review of current activities in the field as well as main achievements, open issues and future prospects. Topics covered include theoretical background and experimental schemes for atom interferometry; ultracold atoms and atom optics; comparison of atom, light, electron and neutron interferometers and their applications; high precision measurements with atom interferometry and their application to tests of fundamental physics, gravitation, inertial measurements and geophysics; measurement of fundamental constants; interferometry with quantum degenerate gases; matter wave interferometry beyond classical limits; large area interferometers; atom interferometry on chips; and interferometry with molecules. The book will be a valuable source of reference for students, newcomers and experts in the field of atom interferometry.
Author: Panayotis G. Kevrekidis
Publisher: Springer Science & Business Media
ISBN: 3540735917
Category : Science
Languages : en
Pages : 398
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Book Description
This book, written by experts in the fields of atomic physics and nonlinear science, covers the important developments in a special aspect of Bose-Einstein condensation, namely nonlinear phenomena in condensates. Topics covered include bright, dark, gap and multidimensional solitons; vortices; vortex lattices; optical lattices; multicomponent condensates; mathematical methods/rigorous results; and the beyond-the-mean-field approach.
Author: Robin Coté
Publisher: World Scientific
ISBN: 9814273007
Category : Science
Languages : en
Pages : 372
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Book Description
In memoriam. Herbert Walther, scientist extraordinaire / P. Meystre. Willis E. Lamb / P. Berman -- Nobel Laureate session. When is a quantum gas a quantum liquid? / E.A. Cornell. Cooperative emission of light quanta : a theory of coherent radiation damping / R.J. Glauber. Coherent control of ultracold matter : fractional quantum Hall physics and large-area atom interferometry / S. Chu -- Precision measurements. More accurate measurement of the electron magnetic moment and the fine structure constant / G. Gabrielse. Determination of the fine structure constant with atom interferometry and Bloch oscillations / F. Biraben. Precise measurements of s-wave scattering phase shifts with a juggling atomic clock / K. Gibble. Quantum control of spins and photons at nanoscales / M.D. Lukin -- Quantum information and quantum optics. Atomic ensemble quantum memories / A. Kuzmich. Quantum non-demolition photon counting and time-resolved reconstruction of non-classical field states in a cavity / S. Haroche. Spin squeezing on an atomic-clock transition / V. Vuletić. Quantum micro-mechanics with ultracold atoms / D. Stamper-Kurn. Improved "position squared" readout using degenerate cavity modes / J.G.E. Harris -- Quantum degenerate systems. Tunable interactions in a Bose-Einstein condensate of Lithium : photoassociation and disorder-induced localization / R.G. Hulet. A purely dipolar quantum gas / T. Pfau. Bose-Einstein condensation of exciton-polaritons / Y. Yamamoto. Anderson localization of matter waves / P. Bouyer. Anderson localization of a non-interacting Bose-Einstein condensate / M. Inguscio. Fermi gases with tunable interactions / J.E. Thomas. Photoemission spectroscopy for ultracold atoms / D.S. Jin. Universality in strongly interacting Fermi gases / P.D. Drummond. Mapping the phase diagram of a two-component Fermi gas with strong interactions / Y. Shin. Exploring universality of few-body physics based on ultracold atoms near Feshbach resonances / C. Chin -- Optical lattices and cold molecules. Atom interferometry with a weakly interacting Bose-Einstein condensate / G. Modugno. An optical plaquette : minimum expressions of topological matter / B. Paredes. Strongly correlated bosons and fermions in optical lattices / I. Bloch. Laser cooling of molecules / P. Pillet. A dissipative Tonks-Girardeau gas of molecules / S. Dürr. Spectroscopy of ultracold KRb molecules / W.C. Stwalley. Cold molecular ions : single molecule studies / M. Drewsen -- Ultrafast phenomena. The frontiers of attosecond physics / L.F. DiMauro. Strong-field control of X-ray processes / L. Young
Author: R. Kaiser
Publisher: Springer Science & Business Media
ISBN: 3540410473
Category : Science
Languages : en
Pages : 725
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Book Description
This book, devoted to the study of quantum effects in atomic systems, reviews the state of the art in the fields of Bose--Einstein condensation, quantum information processing, and the problems of propagation of matter waves in complex media. The specific topics include: theory and experiments in Bose--Einstein condensation, theory and experiments on decoherence phenomena in simple quantum systems and the connection to quantum measurement, atom interferometry, quantum computing, multiple scattering problems in atomic physics, quantum and nonlinear optics in a photonic band gap and quantum chaos and atomic physics. Pedagogical in style, the articles address PhD students as well as researchers.
Author: John Michels (Journalist)
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1744
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Book Description
Author: Nick Proukakis
Publisher: World Scientific
ISBN: 1848168128
Category : Science
Languages : en
Pages : 579
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Book Description
This volume provides a broad overview of the principal theoretical techniques applied to non-equilibrium and finite temperature quantum gases. Covering Bose-Einstein condensates, degenerate Fermi gases, and the more recently realised exciton-polariton condensates, it fills a gap by linking between different methods with origins in condensed matter physics, quantum field theory, quantum optics, atomic physics, and statistical mechanics.
Author: Christopher Pethick
Publisher:
ISBN: 9781139811781
Category : SCIENCE
Languages : en
Pages : 584
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Book Description
Introduction to ultracold atomic Bose and Fermi gases for advanced undergraduates, graduates, experimentalists and theorists.
Author: Craig M. Savage
Publisher: World Scientific
ISBN: 9789810244842
Category : Science
Languages : en
Pages : 324
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Book Description
Bose-Einstein condensation of dilute gases is an exciting new field of interdisciplinary physics. The eight chapters in this volume introduce its theoretical and experimental foundations. The authors are lucid expositors who have also made outstanding contributions to the field. They include theorists Tony Leggett, Allan Griffin and Keith Burnett, and Nobel-Prize-winning experimentalist Bill Phillips. In addition to the introductory material, there are articles treating topics at the forefront of research, such as experimental quantum phase engineering of condensates, the ?superchemistry? of interacting atomic and molecular condensates, and atom laser theory.
