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

arXiv:cond-mat/9905266 · Physical Review A

Dark states of dressed Bose-Einstein condensates

E. S. Lee, Carsten Geckeler, J. Heurich, A. Gupta, Kit-Iu Cheong, S. Secrest, Pierre Meystre

Published Nov 1, 1999• 12 citations
arXivHTMLPDF

Abstract

We combine the ideas of dressed Bose-Einstein condensates, where an intracavity optical field allows one to design coupled, multicomponent condensates, and of dark states of quantum systems, to generate a full quantum entanglement between two matter waves and two optical waves. While the matter waves are macroscopically populated, the two optical modes share a single photon. As such, this system offers a way to influence the behavior of a macroscopic quantum system via a microscopic ``knob.''

DOI
10.1103/physreva.60.4006

Related papers

Macroscopic quantum entanglement

F. S. Cataliotti, F. De Martini, Fabio Sciarrino +2 more

In the present work we propose to realize a macroscopic light-matter entangled state, obtained by the interaction of a multiphoton quantum superposition with a BEC system. The multiphoton quantum state is generated by a quantum-injected optical parametric amplifier (QI-OPA) seeded by a single-photon belonging to an EPR entangled pair and interacts with a Mirror-BEC shaped as a Bragg interference structure. The overall process will realize an entangled macroscopic quantum superposition involving a "microscopic" single-photon state of polarization and the coherent "macroscopic" displacement of the BEC structure acting in space-like separated distant places. This hybrid photonic-atomic system could open new perspectives on the possibility of coupling the amplified radiation with an atomic ensemble, a Bose-Einstein condensate, in order to implement innovative quantum interface between light and matter.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Aug 28, 2008•0 citations

Optical manipulation of matter-waves

R. Carretero-González, P. G. Kevrekidis, D. J. Frantzeskakis +1 more

Recent experimental and theoretical progress in the studies of Bose-Einstein condensation (BEC) has precipitated an intense effort to understand and control interactions of nonlinear matter-waves. Key ingredients in manipulations of matter-waves in BECs are a) external localized impurities (generated by focused laser beams) and b) periodic potentials (generated by interference patterns from multiple laser beams illuminating the condensate). In this work we demonstrate the ability of time-dependent external optical potentials to drag, capture and pin a wide range of localized BEC states, such as dark and bright solitons. The stability and existence of pinned states is analyzed using perturbation techniques, which predict results that are well corroborated by direct numerical simulations. The control of these macroscopic quantum states has important applications in the realm of quantum storage and processing of information, with potential implications for the design of quantum computers.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Aug 18, 2005•1 citation

Quantum optics of a Bose-Einstein condensate coupled to a quantized light field

M. G. Moore, O. Zobay, Pierre Meystre

We consider the interaction between a Bose-Einstein condensate and a single-mode quantized light field in the presence of a strong far-off-resonant pump laser. The dynamics is characterized by an exponential instability, hence the system acts as an atom-photon parametric amplifier. Triggered by a small injected probe field, or simply by quantum noise, entangled atom-photon pairs are created which exhibit nonclassical correlations similar to those seen between photons in the optical parametric amplifier. In addition, the quantum statistics of the matter and light field depend strongly on the initial state which triggers the amplifier. Thus, by preparing different initial states of the light field, one can generate matter waves in a variety of quantum states, demonstrating optical control over the quantum statistics of matter waves.

arXiv:cond-mat/9902293•Physical Review A•Aug 1, 1999•125 citations

Entanglement generation in quantum networks of Bose–Einstein condensates

Alexey N. Pyrkov, Tim Byrnes

Two component (spinor) Bose–Einstein condensates (BECs) are considered as the nodes of an interconnected quantum network. Unlike standard single-system qubits, in a BEC the quantum information is duplicated in a large number of identical bosonic particles, thus can be considered to be a 'macroscopic' qubit. One of the difficulties with such a system is how to effectively interact such qubits together in order to transfer quantum information and create entanglement. Here we propose a scheme of cavities containing spinor BECs coupled by optical fiber in order to achieve this task. We discuss entanglement generation and quantum state transfer between nodes using such macroscopic BEC qubits.

arXiv:1308.0453•New Journal of Physics•Sep 13, 2013•59 citations

Bose-Einstein Condensate

Aranya B. Bhattacherjee

Bose-Einstein condensate (BEC) is a state of matter in which all the neutral atoms or subatomic particles are cooled down to a temperature very near to absolute zero. Quantum effects become apparent on a macroscopic scale at the critical temperature which leads to macroscopic quantum phenomena. The efforts made by Bose and Einstein introduced the novel idea of a Bose gas obeying the quantum statistics known as Bose-Einstein statistics. These statistics depict the distribution of identical particles having integral spin which are well-recognized as bosons. Cavity quantum optomechanics is an emerging field which controls the quantum mechanical interaction between electromagnetic radiation and bulk mechanical resonators. Cavity optomechanical system consisting of BEC has extremely high potential applications in the areas of quantum communications and quantum information processing. A strong quantum entanglement can be achieved between the mechanical mode of the BEC and the optical mode. One of the major limitations is that the apparatus involving BEC are extremely expensive and bulky.

Apple Academic Press eBooks•May 10, 2020•2 citations

MACROSCOPIC QUANTUM ENTANGLEMENT IN LIGHT REFLECTION FROM BOSE-EINSTEIN CONDENSATES

F. De Martini, Fabio Sciarrino, Nicolò Spagnolo +2 more

The present work investigates quantum phenomena with large size systems generated in the microscopic world and then transferred in the macro one through an amplification process. Precisely, a microscopic entangled photon state is created by a nonlinear optical process, then one subsystem is injected into an optical parametric amplifier and then converted into a macro — state consisting of N ≈ 3.5 × 104 photons in a quantum superposition. By adopting a local filtering technique, we then demonstrate the entanglement of the bipartite system. The new conceptual framework paves the way toward the generation of light-matter entangled states by coupling the output radiation with a Bose-Einstein condensate. The multiphoton superposition generated by a quantum-injected optical parametric amplifier (QI-OPA) can be made to interact with a Mirror-BEC shaped as a Bragg interference structure.

International Journal of Quantum Information•Jan 1, 2009•2 citations
We combine the ideas of dressed Bose-Einstein condensates, where an intracavity optical field allows one to design coupled, multicomponent condensates, and of dark states of quantum systems, to generate a full quantum entanglement between two matter waves and two optical waves. While the matter waves are macroscopically populated, the two optical modes share a single photon. As such, this system offers a way to influence the behavior of a macroscopic quantum system via a microscopic ``knob.''
In the present work we propose to realize a macroscopic light-matter entangled state, obtained by the interaction of a multiphoton quantum superposition with a BEC system. The multiphoton quantum state is generated by a quantum-injected optical parametric amplifier (QI-OPA) seeded by a single-photon belonging to an EPR entangled pair and interacts with a Mirror-BEC shaped as a Bragg interference structure. The overall process will realize an entangled macroscopic quantum superposition involving a "microscopic" single-photon state of polarization and the coherent "macroscopic" displacement of the BEC structure acting in space-like separated distant places. This hybrid photonic-atomic system could open new perspectives on the possibility of coupling the amplified radiation with an atomic ensemble, a Bose-Einstein condensate, in order to implement innovative quantum interface between light and matter.
Recent experimental and theoretical progress in the studies of Bose-Einstein condensation (BEC) has precipitated an intense effort to understand and control interactions of nonlinear matter-waves. Key ingredients in manipulations of matter-waves in BECs are a) external localized impurities (generated by focused laser beams) and b) periodic potentials (generated by interference patterns from multiple laser beams illuminating the condensate). In this work we demonstrate the ability of time-dependent external optical potentials to drag, capture and pin a wide range of localized BEC states, such as dark and bright solitons. The stability and existence of pinned states is analyzed using perturbation techniques, which predict results that are well corroborated by direct numerical simulations. The control of these macroscopic quantum states has important applications in the realm of quantum storage and processing of information, with potential implications for the design of quantum computers.
We consider the interaction between a Bose-Einstein condensate and a single-mode quantized light field in the presence of a strong far-off-resonant pump laser. The dynamics is characterized by an exponential instability, hence the system acts as an atom-photon parametric amplifier. Triggered by a small injected probe field, or simply by quantum noise, entangled atom-photon pairs are created which exhibit nonclassical correlations similar to those seen between photons in the optical parametric amplifier. In addition, the quantum statistics of the matter and light field depend strongly on the initial state which triggers the amplifier. Thus, by preparing different initial states of the light field, one can generate matter waves in a variety of quantum states, demonstrating optical control over the quantum statistics of matter waves.
Two component (spinor) Bose–Einstein condensates (BECs) are considered as the nodes of an interconnected quantum network. Unlike standard single-system qubits, in a BEC the quantum information is duplicated in a large number of identical bosonic particles, thus can be considered to be a 'macroscopic' qubit. One of the difficulties with such a system is how to effectively interact such qubits together in order to transfer quantum information and create entanglement. Here we propose a scheme of cavities containing spinor BECs coupled by optical fiber in order to achieve this task. We discuss entanglement generation and quantum state transfer between nodes using such macroscopic BEC qubits.
Bose-Einstein condensate (BEC) is a state of matter in which all the neutral atoms or subatomic particles are cooled down to a temperature very near to absolute zero. Quantum effects become apparent on a macroscopic scale at the critical temperature which leads to macroscopic quantum phenomena. The efforts made by Bose and Einstein introduced the novel idea of a Bose gas obeying the quantum statistics known as Bose-Einstein statistics. These statistics depict the distribution of identical particles having integral spin which are well-recognized as bosons. Cavity quantum optomechanics is an emerging field which controls the quantum mechanical interaction between electromagnetic radiation and bulk mechanical resonators. Cavity optomechanical system consisting of BEC has extremely high potential applications in the areas of quantum communications and quantum information processing. A strong quantum entanglement can be achieved between the mechanical mode of the BEC and the optical mode. One of the major limitations is that the apparatus involving BEC are extremely expensive and bulky.
The present work investigates quantum phenomena with large size systems generated in the microscopic world and then transferred in the macro one through an amplification process. Precisely, a microscopic entangled photon state is created by a nonlinear optical process, then one subsystem is injected into an optical parametric amplifier and then converted into a macro — state consisting of N ≈ 3.5 × 104 photons in a quantum superposition. By adopting a local filtering technique, we then demonstrate the entanglement of the bipartite system. The new conceptual framework paves the way toward the generation of light-matter entangled states by coupling the output radiation with a Bose-Einstein condensate. The multiphoton superposition generated by a quantum-injected optical parametric amplifier (QI-OPA) can be made to interact with a Mirror-BEC shaped as a Bragg interference structure.