Entanglement assisted fast reordering of atoms in an optical lattice within a cavity at T = 0

Christoph Maschler, Helmut Ritsch, A. Vukics, P. Domokos

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Laser-illuminated atoms in an optical resonator exhibit a phase transition between the homogenous distribution and two possible ordered configurations in the optical lattice formed by the cavity and pump fields. At zero temperature, atom-field entanglement plays a crucial role in the spatial reordering of the atoms from a homogeneous towards the two ordered states, where all atoms occupy either only even or only odd lattice sites. Concurrent with the buildup of atom-field entanglement, the homogeneous atomic cloud evolves immediately into the superposition of the two stable patterns entangled with opposite cavity field amplitudes. This possibility is absent in a factorized (classical) treatment of atoms and field and should be generic for spontaneous symmetry breaking in quantum phase transitions in optical potentials.

Original languageEnglish
Pages (from-to)446-450
Number of pages5
JournalOptics Communications
Volume273
Issue number2
DOIs
Publication statusPublished - May 15 2007

Fingerprint

Optical lattices
Atoms
cavities
atoms
Phase transitions
Optical resonators
optical resonators
broken symmetry
Pumps
pumps
Lasers
configurations
lasers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Entanglement assisted fast reordering of atoms in an optical lattice within a cavity at T = 0. / Maschler, Christoph; Ritsch, Helmut; Vukics, A.; Domokos, P.

In: Optics Communications, Vol. 273, No. 2, 15.05.2007, p. 446-450.

Research output: Contribution to journalArticle

@article{88ed8495b60646ad880e7d30135c9716,
title = "Entanglement assisted fast reordering of atoms in an optical lattice within a cavity at T = 0",
abstract = "Laser-illuminated atoms in an optical resonator exhibit a phase transition between the homogenous distribution and two possible ordered configurations in the optical lattice formed by the cavity and pump fields. At zero temperature, atom-field entanglement plays a crucial role in the spatial reordering of the atoms from a homogeneous towards the two ordered states, where all atoms occupy either only even or only odd lattice sites. Concurrent with the buildup of atom-field entanglement, the homogeneous atomic cloud evolves immediately into the superposition of the two stable patterns entangled with opposite cavity field amplitudes. This possibility is absent in a factorized (classical) treatment of atoms and field and should be generic for spontaneous symmetry breaking in quantum phase transitions in optical potentials.",
author = "Christoph Maschler and Helmut Ritsch and A. Vukics and P. Domokos",
year = "2007",
month = "5",
day = "15",
doi = "10.1016/j.optcom.2007.01.069",
language = "English",
volume = "273",
pages = "446--450",
journal = "Optics Communications",
issn = "0030-4018",
publisher = "Elsevier",
number = "2",

}

TY - JOUR

T1 - Entanglement assisted fast reordering of atoms in an optical lattice within a cavity at T = 0

AU - Maschler, Christoph

AU - Ritsch, Helmut

AU - Vukics, A.

AU - Domokos, P.

PY - 2007/5/15

Y1 - 2007/5/15

N2 - Laser-illuminated atoms in an optical resonator exhibit a phase transition between the homogenous distribution and two possible ordered configurations in the optical lattice formed by the cavity and pump fields. At zero temperature, atom-field entanglement plays a crucial role in the spatial reordering of the atoms from a homogeneous towards the two ordered states, where all atoms occupy either only even or only odd lattice sites. Concurrent with the buildup of atom-field entanglement, the homogeneous atomic cloud evolves immediately into the superposition of the two stable patterns entangled with opposite cavity field amplitudes. This possibility is absent in a factorized (classical) treatment of atoms and field and should be generic for spontaneous symmetry breaking in quantum phase transitions in optical potentials.

AB - Laser-illuminated atoms in an optical resonator exhibit a phase transition between the homogenous distribution and two possible ordered configurations in the optical lattice formed by the cavity and pump fields. At zero temperature, atom-field entanglement plays a crucial role in the spatial reordering of the atoms from a homogeneous towards the two ordered states, where all atoms occupy either only even or only odd lattice sites. Concurrent with the buildup of atom-field entanglement, the homogeneous atomic cloud evolves immediately into the superposition of the two stable patterns entangled with opposite cavity field amplitudes. This possibility is absent in a factorized (classical) treatment of atoms and field and should be generic for spontaneous symmetry breaking in quantum phase transitions in optical potentials.

UR - http://www.scopus.com/inward/record.url?scp=33947355285&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33947355285&partnerID=8YFLogxK

U2 - 10.1016/j.optcom.2007.01.069

DO - 10.1016/j.optcom.2007.01.069

M3 - Article

AN - SCOPUS:33947355285

VL - 273

SP - 446

EP - 450

JO - Optics Communications

JF - Optics Communications

SN - 0030-4018

IS - 2

ER -