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Generating Long-Lived Macroscopically Distinct Superposition States in Atomic Ensembles
Authors:
- Wei Qin,
- Adam Miranowicz,
- Hui Jing,
- Franco Nori
- Record ID
- UAM237d50bf64a84ffc94e16b8f23995ea9
- Author
- Journal series
- Physical Review Letters, ISSN 0031-9007, e-ISSN 1079-7114
- Issue year
- 2021
- Vol
- 127
- No
- 9
- Article number
- 093602
- Keywords in original language
- Cavity quantum electrodynamics ; Collective effects in quantum optics ; Light-matter interaction ; Quantum state engineering
- ASJC Classification
- Abstract in original language
- We propose to create and stabilize long-lived macroscopic quantum superposition states in atomic ensembles. We show that using a fully quantum parametric amplifier can cause the simultaneous decay of two atoms and, in turn, create stabilized atomic Schrödinger cat states. Remarkably, even with modest parameters these intracavity atomic cat states can have an extremely long lifetime, up to 4 orders of magnitude longer than that of intracavity photonic cat states under the same parameter conditions, reaching tens of milliseconds. This lifetime of atomic cat states is ultimately limited to several seconds by extremely weak spin relaxation and thermal noise. Our work opens up a new way toward the long-standing goal of generating large-size and long-lived cat states, with immediate interests both in fundamental studies and noise-immune quantum technologies.
- DOI
- DOI:10.1103/PhysRevLett.127.093602 Opening in a new tab
- URL
- https://link.aps.org/doi/10.1103/PhysRevLett.127.093602 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 200
- Score source
- journalList
- Score
- = 200.0, 20-05-2022, ArticleFromJournal
- Publication indicators
- = 10; : 2017 = 2.464; : 2019 (2 years) = 8.385 - 2019 (5 years) =8.215
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- Uniform Resource Identifier
- https://researchportal.amu.edu.pl/info/article/UAM237d50bf64a84ffc94e16b8f23995ea9/
- URN
urn:amu-prod:UAM237d50bf64a84ffc94e16b8f23995ea9
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or PerishOpening in a new tab system.