Another way to approach zero entropy for a finite system of atoms

D. S. Weiss; J. Vala; A. V. Thapliyal; S. Myrgren; U. Vazirani; K. B. Whaley

doi:10.1103/PhysRevA.70.040302

Another way to approach zero entropy for a finite system of atoms

D. S. Weiss, J. Vala, A. V. Thapliyal, S. Myrgren, U. Vazirani, K. B. Whaley

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Abstract

A method to reduce the entropy of a finite system of atoms to arbitrarily small values was discussed. In this method, the locations of vacancies of laser-cooled atoms in a deep optical lattice were measured. A combination of site-specific atomic state flips and state-sensitive lattice site transitions was used to calculate the distribution efficiency. The results show that the central region of the lattice has exactly one atom per site in its vibrational ground state.

Original language	English (US)
Article number	040302
Pages (from-to)	040302-1-040302-4
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	70
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevA.70.040302
State	Published - Oct 2004

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.70.040302

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title = "Another way to approach zero entropy for a finite system of atoms",

abstract = "A method to reduce the entropy of a finite system of atoms to arbitrarily small values was discussed. In this method, the locations of vacancies of laser-cooled atoms in a deep optical lattice were measured. A combination of site-specific atomic state flips and state-sensitive lattice site transitions was used to calculate the distribution efficiency. The results show that the central region of the lattice has exactly one atom per site in its vibrational ground state.",

author = "Weiss, {D. S.} and J. Vala and Thapliyal, {A. V.} and S. Myrgren and U. Vazirani and Whaley, {K. B.}",

note = "Funding Information: D.S.W. thanks Birjoo Vaishnav for discussions. This effort was sponsored by the Defense Advanced Research Projects Agency (DARPA). D.S.W. also acknowledges support from the National Science Foundation.",

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AU - Weiss, D. S.

AU - Vala, J.

AU - Thapliyal, A. V.

AU - Myrgren, S.

AU - Vazirani, U.

AU - Whaley, K. B.

N1 - Funding Information: D.S.W. thanks Birjoo Vaishnav for discussions. This effort was sponsored by the Defense Advanced Research Projects Agency (DARPA). D.S.W. also acknowledges support from the National Science Foundation.

PY - 2004/10

Y1 - 2004/10

N2 - A method to reduce the entropy of a finite system of atoms to arbitrarily small values was discussed. In this method, the locations of vacancies of laser-cooled atoms in a deep optical lattice were measured. A combination of site-specific atomic state flips and state-sensitive lattice site transitions was used to calculate the distribution efficiency. The results show that the central region of the lattice has exactly one atom per site in its vibrational ground state.

AB - A method to reduce the entropy of a finite system of atoms to arbitrarily small values was discussed. In this method, the locations of vacancies of laser-cooled atoms in a deep optical lattice were measured. A combination of site-specific atomic state flips and state-sensitive lattice site transitions was used to calculate the distribution efficiency. The results show that the central region of the lattice has exactly one atom per site in its vibrational ground state.

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Another way to approach zero entropy for a finite system of atoms

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