Author: Alexander Kasper
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Bose-Einstein Condensation in a Robust Microtrap
Author: Alexander Kasper
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
One-dimensional Bose-Einstein Condensates in Micro-traps
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A novel wire-based magneto-optical trap has been demonstrated which enables to collect up to 3x10^8 cold atoms close to the reflecting surface of an atom chip. These atoms are subsequently transferred to micro-traps generated by wires mounted on the atom chip and Bose-Einstein condensation has been achieved. The Bose-Einstein condensates (BECs) created in the micro-traps form in the one-dimensional Thomas-Fermi regime. The cross-over between three-dimensional and one-dimensional BECs has been investigated by monitoring the transverse size of the BEC after ballistic expansion. Good agreement to theory has been found. As an application, one-dimensional BECs have been used to implement a microscopic magnetic field sensor. This sensor enables field measurements in a region which is not accessible for today's state-of-the-art sensors. A field sensitivity of 4 nT at a spatial resolution of 3 micrometer has been demonstrated. To investigate the phase-properties of a one-dimensional BEC, coherent splitting of a one-dimensional BEC has been achieved and interferometry on an atom chip has been demonstrated.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A novel wire-based magneto-optical trap has been demonstrated which enables to collect up to 3x10^8 cold atoms close to the reflecting surface of an atom chip. These atoms are subsequently transferred to micro-traps generated by wires mounted on the atom chip and Bose-Einstein condensation has been achieved. The Bose-Einstein condensates (BECs) created in the micro-traps form in the one-dimensional Thomas-Fermi regime. The cross-over between three-dimensional and one-dimensional BECs has been investigated by monitoring the transverse size of the BEC after ballistic expansion. Good agreement to theory has been found. As an application, one-dimensional BECs have been used to implement a microscopic magnetic field sensor. This sensor enables field measurements in a region which is not accessible for today's state-of-the-art sensors. A field sensitivity of 4 nT at a spatial resolution of 3 micrometer has been demonstrated. To investigate the phase-properties of a one-dimensional BEC, coherent splitting of a one-dimensional BEC has been achieved and interferometry on an atom chip has been demonstrated.
Microtraps and Waveguides for Bose-Einstein Condensates
Author: Aaron Edward Leanhardt
Publisher:
ISBN:
Category :
Languages : en
Pages : 298
Book Description
(Cont.) Partially condensed atomic vapors were confined by a combination of gravitational and magnetic forces. They were adiabatically decompressed, by weakening the gravito-magnetic trap to a mean frequency of 1 Hz, then evaporatively reduced in size to 2500 atoms. This lowered the peak condensate density to 5 x 1010 atoms/cm3 and cooled the entire cloud in all three dimensions to a kinetic temperature of 450±80 pK.
Publisher:
ISBN:
Category :
Languages : en
Pages : 298
Book Description
(Cont.) Partially condensed atomic vapors were confined by a combination of gravitational and magnetic forces. They were adiabatically decompressed, by weakening the gravito-magnetic trap to a mean frequency of 1 Hz, then evaporatively reduced in size to 2500 atoms. This lowered the peak condensate density to 5 x 1010 atoms/cm3 and cooled the entire cloud in all three dimensions to a kinetic temperature of 450±80 pK.
Bose Einstein Condensation on an Atom Chip
Author: M. P. A. Jones
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Bose-Einstein Condensation with High Atom Number in a Deep Magnetic Trap
Author: Kai Dieckmann
Publisher:
ISBN: 9789090145471
Category :
Languages : en
Pages : 122
Book Description
Publisher:
ISBN: 9789090145471
Category :
Languages : en
Pages : 122
Book Description
Magnetic Traps and Guides for Bose-Einstein Condensates on an Atom Chip
Author: Peter D. D. Schwindt
Publisher:
ISBN:
Category : Atomic beams
Languages : en
Pages : 284
Book Description
Publisher:
ISBN:
Category : Atomic beams
Languages : en
Pages : 284
Book Description
Permanent Magnetic Atom Chips and Bose-Einstein Condensation
Author: René Gerritsma
Publisher:
ISBN:
Category :
Languages : en
Pages : 103
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 103
Book Description
Bose-Einstein Condensation of K-41 and Rb-87 on an Atom Chip for Sounding Rocket Missions
Author: Baptist Piest
Publisher:
ISBN:
Category : Bose-Einstein condensation
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Bose-Einstein condensation
Languages : en
Pages :
Book Description
Atom Chips
Author: Jakob Reichel
Publisher: John Wiley & Sons
ISBN: 3527643923
Category : Science
Languages : en
Pages : 412
Book Description
This stimulating discussion of a rapidly developing field is divided into two parts. The first features tutorials in textbook style providing self-contained introductions to the various areas relevant to atom chip research. Part II contains research reviews that provide an integrated account of the current state in an active area of research where atom chips are employed, and explore possible routes of future progress. Depending on the subject, the length of the review and the relative weight of the 'review' and 'outlook' parts vary, since the authors include their own personal view and style in their accounts.
Publisher: John Wiley & Sons
ISBN: 3527643923
Category : Science
Languages : en
Pages : 412
Book Description
This stimulating discussion of a rapidly developing field is divided into two parts. The first features tutorials in textbook style providing self-contained introductions to the various areas relevant to atom chip research. Part II contains research reviews that provide an integrated account of the current state in an active area of research where atom chips are employed, and explore possible routes of future progress. Depending on the subject, the length of the review and the relative weight of the 'review' and 'outlook' parts vary, since the authors include their own personal view and style in their accounts.
Scalable Microchip Ion Traps for Quantum Computation
Author: Stephan Schulz
Publisher: Lulu.com
ISBN: 0557621852
Category : Science
Languages : en
Pages : 192
Book Description
The development of scalable microfabricated ion traps with multiple segments for the realization of quantum computing is a challenging task in quantum information science. The research on the design, development, fabrication, and operation of the first European micro-trap is shown in this thesis. This chip-based micro-trap is an outstanding candidate towards experiments for a future quantum processor with trapped single ions. In the experiments coherent quantum state manipulation is demonstrated, and sideband cooling to the motional ground state is realized. The heating rate is determined and the applicability for quantum computation is proven. Furthermore planar trap designs are investigated - a planar microparticle trap was built and operated. A linear microfabricated planar trap was operated, showing the proof of concept of a novel designed and fabricated Y-shaped planar trap.
Publisher: Lulu.com
ISBN: 0557621852
Category : Science
Languages : en
Pages : 192
Book Description
The development of scalable microfabricated ion traps with multiple segments for the realization of quantum computing is a challenging task in quantum information science. The research on the design, development, fabrication, and operation of the first European micro-trap is shown in this thesis. This chip-based micro-trap is an outstanding candidate towards experiments for a future quantum processor with trapped single ions. In the experiments coherent quantum state manipulation is demonstrated, and sideband cooling to the motional ground state is realized. The heating rate is determined and the applicability for quantum computation is proven. Furthermore planar trap designs are investigated - a planar microparticle trap was built and operated. A linear microfabricated planar trap was operated, showing the proof of concept of a novel designed and fabricated Y-shaped planar trap.