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

International Journal of Theoretical Physics

Nonclassical Properties via Subtracting Photons from Displaced Thermal States and Decoherence Evolution for Amplitude Decay

Anpeng Wang, Xiang‐Guo Meng, Ji‐Suo Wang

Published Dec 1, 2022• 1 citation
Publisher
DOI
10.1007/s10773-022-05248-x

Related papers

Nonclassical properties of multiple-photon subtracted displaced squeezed thermal states

S. Wang, Liyun Hu, Heng Fan

The European Physical Journal D•Jun 1, 2012•5 citations

Nonclassicality and Decoherence of Photon-Subtraction Squeezing-Enhanced Thermal State

Haoliang Zhang, Fang Jia, Xue-xiang Xu +2 more

International Journal of Theoretical Physics•May 29, 2012•13 citations

Impact of photon addition and subtraction on nonclassical and phase properties of a displaced Fock state

Priya Malpani, Kishore Thapliyal, Nasir Alam +3 more

arXiv:1908.04086•Optics Communications•Nov 18, 2019•25 citations

Nonclassical thermal-state superpositions: Analytical evolution law and decoherence behavior

Xiang‐Gao Meng, Hsi‐Sheng Goan, Ji‐Suo Wang +1 more

Optics Communications•Nov 21, 2017•35 citations

Nonclassicality revival of photon-added displaced thermal states in the amplitude decay channel

Ran Zhang, Xiang‐Guo Meng, Jianmeng Sun +1 more

In this paper, the decoherence features of the photon-added displaced thermal state (PADTS) in the amplitude decay channel were studied by analytically and numerically investigating the time evolution of the Wigner function. The normal product representation of density for the PADTS is presented. The results indicate that the nonclassicality of PADTS can revive after disappearing with time. This kind of revival can maintain for a period of time and inevitably disappear eventually. However, we find that the operation of adding photons has the effect of reducing the decoherence rate of PADTS in the amplitude decay channel, although it also can decrease the PADTS’s nonclassicality markedly.

Canadian Journal of Physics•Sep 9, 2019•2 citations

Nonclassicality and decoherence of photon-subtracted squeezed states

Asoka Biswas, G. S. Agarwal

We discuss nonclassical properties of single-photon subtracted squeezed vacuum states in terms of the sub-Poissonian statistics and the negativity of the Wigner function. We derive a compact expression for the Wigner function from which we find the region of phase space where Wigner function is negative. We find an upper bound on the squeezing parameter for the state to exhibit sub-Poissonian statistics. We then study the effect of decoherence on the single-photon subtracted squeezed states. We present results for two different models of decoherence, viz. amplitude decay model and the phase diffusion model. In each case we give analytical results for the time evolution of the state. We discuss the loss of nonclassicality as a result of decoherence. We show through the study of their phase-space properties how these states decay to vacuum due to the decay of photons. We show that phase damping leads to very slow decoherence, slower than the photon-number decay.

arXiv:quant-ph/0612024•Physical Review A•Mar 7, 2007•188 citations
In this paper, the decoherence features of the photon-added displaced thermal state (PADTS) in the amplitude decay channel were studied by analytically and numerically investigating the time evolution of the Wigner function. The normal product representation of density for the PADTS is presented. The results indicate that the nonclassicality of PADTS can revive after disappearing with time. This kind of revival can maintain for a period of time and inevitably disappear eventually. However, we find that the operation of adding photons has the effect of reducing the decoherence rate of PADTS in the amplitude decay channel, although it also can decrease the PADTS’s nonclassicality markedly.
We discuss nonclassical properties of single-photon subtracted squeezed vacuum states in terms of the sub-Poissonian statistics and the negativity of the Wigner function. We derive a compact expression for the Wigner function from which we find the region of phase space where Wigner function is negative. We find an upper bound on the squeezing parameter for the state to exhibit sub-Poissonian statistics. We then study the effect of decoherence on the single-photon subtracted squeezed states. We present results for two different models of decoherence, viz. amplitude decay model and the phase diffusion model. In each case we give analytical results for the time evolution of the state. We discuss the loss of nonclassicality as a result of decoherence. We show through the study of their phase-space properties how these states decay to vacuum due to the decay of photons. We show that phase damping leads to very slow decoherence, slower than the photon-number decay.