Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

World Conference on Control, Electronics and Computer Engineering (WCCECE)

Research of Quantum Entanglement and Quantum Coherence Caused by Atomic Ensembles in Optical Cavity

Zhaohua Wang

Published Jan 1, 2018• 0 citations
Publisher

Abstract

As the most basic concept of quantum mechanics, a lot of researches on quantum entanglement and quantum coherence have been carried out in recent years.Based on this, the authors discuss in detail the quantum entanglement and quantum coherence generated by the atomic ensemble in circular cavity and optical mechanical cavities, and hope that the exposition content can bring inspirations for industry insiders.

DOI
10.25236/wccece.2018.36

Related papers

Research of Quantum Entanglement Control and Decoherence

Zhaohua Wang

As the most peculiar and incredible feature of quantum mechanics, there is a great gap between quantum information and classical information, which is evident in the new field of quantum information.Based on this, this paper discusses quantum entanglement control and decoherence and hopes that it can bring some enlightenment for the related industry.

World Conference on Control, Electronics and Computer Engineering (WCCECE)•Jan 1, 2018•0 citations

Quantum Optics with Atomic Ensembles and Single Atoms in Cavities

Tracy E. Northup, Harry J. Kimble

Current experiments in our group explore the quantum interface between matter and light, with the goal of achieving coherent control for implementing quantum information protocols and quantum networks. We outline recent progress in this direction, including localization to the ground state of motion for an atom trapped in an optical cavity, observation of strong coupling between single Cesium atoms and a monolithic resonator, and generation and characterization of entanglement stored in remote atomic ensembles.

AIP conference proceedings•Jan 1, 2006•0 citations

Continuous variable quantum entanglement in optomechanical systems: A short review

Amarendra K. Sarma, Subhadeep Chakraborty, Sampreet Kalita

Cavity optomechanics deals with the radiation pressure induced interaction between photons and mechanical motion in a cavity. It has promising applications in quantum information science. In this review, the authors discuss quantum entanglement in this emerging area of research. After giving a brief historical background on the topic of entanglement and cavity optomechanics, measures of continuous variable entanglement are discussed somewhat in great details. This is followed by a short discussion on cavity quantum optomechanics, relevant to the topic on entanglement. Then the authors discuss most of the prominent ideas and proposals pertaining to entanglement research in cavity optomechanics up until now. The authors have emphasized the key theoretical concepts without too much rigor and provided relevant experimental details whenever deemed appropriate. Finally, the authors conclude by giving a perspective on other quantum correlations such as quantum discord and quantum synchronization.

AVS Quantum Science•Jan 6, 2021•19 citations

The application of quantum coherence as a resource

Si-Yuan 思远 Liu 刘, Heng 桁 Fan 范

Quantum coherence is a basic concept in quantum mechanics, representing one of the most fundamental characteristics that distinguishes quantum mechanics from classical physics. Quantum coherence is the basis for multi-particle interference and quantum entanglement. It is also the essential ingredient for various physical phenomena in quantum optics, quantum information, etc. In recent years, with the proposal of a quantum coherence measurement scheme based on a resource theory framework, quantum coherence as a quantum resource has been extensively investigated. This article reviews the resource theories of quantum coherence and introduces the important applications of quantum coherence in quantum computing, quantum information, and interdisciplinary fields, particularly in quantum thermodynamics and quantum biology. Quantum coherence and its applications are still being explored and developed. We hope this review can provide inspiration for relevant research.

Chinese Physics B•Sep 18, 2023•10 citations

Quantum interface between light and atomic ensembles

Klemens Hammerer, Anders Søndberg Sørensen, Eugene Simon Polzik

During the past decade the interaction of light with multiatom ensembles has attracted much attention as a basic building block for quantum information processing and quantum state engineering. The field started with the realization that optically thick free space ensembles can be efficiently interfaced with quantum optical fields. By now the atomic ensemble-light interfaces have become a powerful alternative to the cavity-enhanced interaction of light with single atoms. Various mechanisms used for the quantum interface are discussed, including quantum nondemolition or Faraday interaction, quantum measurement and feedback, Raman interaction, photon echo, and electromagnetically induced transparency. This review provides a common theoretical frame for these processes, describes basic experimental techniques and media used for quantum interfaces, and reviews several key experiments on quantum memory for light, quantum entanglement between atomic ensembles and light, and quantum teleportation with atomic ensembles. The two types of quantum measurements which are most important for the interface are discussed: homodyne detection and photon counting. This review concludes with an outlook on the future of atomic ensembles as an enabling technology in quantum information processing.

arXiv:0807.3358•Reviews of Modern Physics•Apr 5, 2010•1,286 citations

Cavity Quantum Electrodynamics: Coherence in Context

Hideo Mabuchi, Andrew C. Doherty

Modern cavity quantum electrodynamics (cavity QED) illuminates the most fundamental aspects of coherence and decoherence in quantum mechanics. Experiments on atoms in cavities can be described by elementary models but reveal intriguing subtleties of the interplay of coherent dynamics with external couplings. Recent activity in this area has pioneered powerful new approaches to the study of quantum coherence and has fueled the growth of quantum information science. In years to come, the purview of cavity QED will continue to grow as researchers build on a rich infrastructure to attack some of the most pressing open questions in micro- and mesoscopic physics.

Science•Nov 14, 2002•698 citations
As the most basic concept of quantum mechanics, a lot of researches on quantum entanglement and quantum coherence have been carried out in recent years.Based on this, the authors discuss in detail the quantum entanglement and quantum coherence generated by the atomic ensemble in circular cavity and optical mechanical cavities, and hope that the exposition content can bring inspirations for industry insiders.
Current experiments in our group explore the quantum interface between matter and light, with the goal of achieving coherent control for implementing quantum information protocols and quantum networks. We outline recent progress in this direction, including localization to the ground state of motion for an atom trapped in an optical cavity, observation of strong coupling between single Cesium atoms and a monolithic resonator, and generation and characterization of entanglement stored in remote atomic ensembles.
Cavity optomechanics deals with the radiation pressure induced interaction between photons and mechanical motion in a cavity. It has promising applications in quantum information science. In this review, the authors discuss quantum entanglement in this emerging area of research. After giving a brief historical background on the topic of entanglement and cavity optomechanics, measures of continuous variable entanglement are discussed somewhat in great details. This is followed by a short discussion on cavity quantum optomechanics, relevant to the topic on entanglement. Then the authors discuss most of the prominent ideas and proposals pertaining to entanglement research in cavity optomechanics up until now. The authors have emphasized the key theoretical concepts without too much rigor and provided relevant experimental details whenever deemed appropriate. Finally, the authors conclude by giving a perspective on other quantum correlations such as quantum discord and quantum synchronization.
Quantum coherence is a basic concept in quantum mechanics, representing one of the most fundamental characteristics that distinguishes quantum mechanics from classical physics. Quantum coherence is the basis for multi-particle interference and quantum entanglement. It is also the essential ingredient for various physical phenomena in quantum optics, quantum information, etc. In recent years, with the proposal of a quantum coherence measurement scheme based on a resource theory framework, quantum coherence as a quantum resource has been extensively investigated. This article reviews the resource theories of quantum coherence and introduces the important applications of quantum coherence in quantum computing, quantum information, and interdisciplinary fields, particularly in quantum thermodynamics and quantum biology. Quantum coherence and its applications are still being explored and developed. We hope this review can provide inspiration for relevant research.
During the past decade the interaction of light with multiatom ensembles has attracted much attention as a basic building block for quantum information processing and quantum state engineering. The field started with the realization that optically thick free space ensembles can be efficiently interfaced with quantum optical fields. By now the atomic ensemble-light interfaces have become a powerful alternative to the cavity-enhanced interaction of light with single atoms. Various mechanisms used for the quantum interface are discussed, including quantum nondemolition or Faraday interaction, quantum measurement and feedback, Raman interaction, photon echo, and electromagnetically induced transparency. This review provides a common theoretical frame for these processes, describes basic experimental techniques and media used for quantum interfaces, and reviews several key experiments on quantum memory for light, quantum entanglement between atomic ensembles and light, and quantum teleportation with atomic ensembles. The two types of quantum measurements which are most important for the interface are discussed: homodyne detection and photon counting. This review concludes with an outlook on the future of atomic ensembles as an enabling technology in quantum information processing.
Modern cavity quantum electrodynamics (cavity QED) illuminates the most fundamental aspects of coherence and decoherence in quantum mechanics. Experiments on atoms in cavities can be described by elementary models but reveal intriguing subtleties of the interplay of coherent dynamics with external couplings. Recent activity in this area has pioneered powerful new approaches to the study of quantum coherence and has fueled the growth of quantum information science. In years to come, the purview of cavity QED will continue to grow as researchers build on a rich infrastructure to attack some of the most pressing open questions in micro- and mesoscopic physics.