Critical slowing down of multi-atom entanglement by Rydberg blockade

Laser excitation pulses that lead to perfect adiabatic state transfer in an ensemble of three-level ladder atoms lead to highly entangled states of many atoms if their highest excited state is subject to Rydberg blockade. Solution of the Schr\"odinger equation shows that it is increasingly diff...

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Bibliographic Details
Published inarXiv.org
Main Authors Abad, Tahereh, Mølmer, Klaus
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 29.06.2018
Subjects
Adiabatic flow
Atomic properties
Energy gap
Entangled states
Evolution
Phase transitions
Physics - Quantum Physics
Quantum entanglement
Variation
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ISSN2331-8422
DOI10.48550/arxiv.1806.11440

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Summary:Laser excitation pulses that lead to perfect adiabatic state transfer in an ensemble of three-level ladder atoms lead to highly entangled states of many atoms if their highest excited state is subject to Rydberg blockade. Solution of the Schr\"odinger equation shows that it is increasingly difficult to ensure the adiabatic evolution as the number of atoms increases. A diminishing energy gap, significant variations in collective observables, and increased work fluctuations link the critical slowing down of the adiabatic evolution with a quantum phase transition-like behavior of the system.
Bibliography:SourceType-Working Papers-1
ObjectType-Working Paper/Pre-Print-1
content type line 50
ISSN:2331-8422
DOI:10.48550/arxiv.1806.11440