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

Conference on Lasers and Electro-Optics

Coherent control of coupled macroscopic quantum systems

Josefin Johansson, Shiro Saito, T. Kutsuzawa, Takayoshi Meno, Kouichi Semba, Hideaki Takayanagi

Published Jan 1, 2005• 0 citations
Publisher
DOI
10.1109/iqec.2005.1560928

Related papers

Coherent control of macroscopic quantum states in a single-Cooper-pair box

Y. Nakamura, Yu. A. Pashkin, J. S. Tsai

arXiv:cond-mat/9904003•Nature•Apr 1, 1999•2,385 citations

Coherent control of quantum systems: theory and experiment

Warren S. Warren

Quantum Electronics and Laser Science Conference•May 2, 1993•0 citations

Strong Angular-Momentum Optomechanical Coupling for Macroscopic Quantum Control

Yuan Liu, Yaoming Chu, Shaoliang Zhang +1 more

Optomechanical systems offer unique opportunities to explore macroscopic quantum state and related fundamental problems in quantum mechanics. Here, we propose a quantum optomechanical system involving exchange interaction between spin angular momentum of light and a torsional oscillator. We demonstrate that this system allows coherent control of the torsional quantum state of a torsional oscillator on the single-photon level, which facilitates efficient cooling and squeezing of the torsional oscillator. Furthermore, the torsional oscillator with a macroscopic length scale can be prepared in Schr\"odinger catlike state. Our work provides a platform to verify the validity of quantum mechanics in macroscopic systems on the micrometer and even centimeter scale.

arXiv:2109.14166•Physical Review Applied•May 11, 2022•0 citations

Coherent control of infinite-dimensional quantum systems

Chitra Rangan

Bulletin of the American Physical Society•Jun 6, 2007•0 citations

Exact coherent control to two weakly coupled Bose–Einstein condensates

Honghua Zhong, Wenhua Hai, Shiguang Rong

We investigate the exact ac control of two periodically driven and weakly coupled Bose–Einstein condensates in a double-well trap. By employing two balance conditions we construct new exact Floquet solutions with the degenerate Floquet energy, and give the balance region on the parameter space. It is revealed that for some different parameters in the balance region the Floquet solutions exactly describe the macroscopic quantum self-trapping, nonlinear coherent construction and destruction of quantum tunneling, respectively. Therefore, we can accurately perform the coherent control by suitably adjusting the system parameters.

Journal of Physics B Atomic Molecular and Optical Physics•Aug 26, 2008•5 citations

Multidimensional coherent control of quantum systems

Thomas Feurer

Conference on Lasers and Electro-Optics•Jan 1, 2005•0 citations
Optomechanical systems offer unique opportunities to explore macroscopic quantum state and related fundamental problems in quantum mechanics. Here, we propose a quantum optomechanical system involving exchange interaction between spin angular momentum of light and a torsional oscillator. We demonstrate that this system allows coherent control of the torsional quantum state of a torsional oscillator on the single-photon level, which facilitates efficient cooling and squeezing of the torsional oscillator. Furthermore, the torsional oscillator with a macroscopic length scale can be prepared in Schr\"odinger catlike state. Our work provides a platform to verify the validity of quantum mechanics in macroscopic systems on the micrometer and even centimeter scale.
We investigate the exact ac control of two periodically driven and weakly coupled Bose–Einstein condensates in a double-well trap. By employing two balance conditions we construct new exact Floquet solutions with the degenerate Floquet energy, and give the balance region on the parameter space. It is revealed that for some different parameters in the balance region the Floquet solutions exactly describe the macroscopic quantum self-trapping, nonlinear coherent construction and destruction of quantum tunneling, respectively. Therefore, we can accurately perform the coherent control by suitably adjusting the system parameters.