Factorization law for entanglement evolution of two qubits in non-Markovian pure dephasing channels

2011 ◽  
Vol 375 (24) ◽  
pp. 2300-2304 ◽  
Author(s):  
Jun-Gang Li ◽  
Jian Zou ◽  
Bin Shao
Keyword(s):  
Entanglement Evolution ◽  
Pure Dephasing ◽  
Factorization Law

Factorization law of entanglement evolution between three qubits in non-Markovian environments

Optik ◽  
2016 ◽  
Vol 127 (24) ◽  
pp. 11893-11900
Author(s):  
Baogen Deng ◽  
Ju-Ju Hu ◽  
Ying-Hua Ji
Keyword(s):  
Entanglement Evolution ◽  
Factorization Law

scholarly journals Two-photon interference from a quantum dot microcavity: Persistent pure dephasing and suppression of time jitter

2015 ◽  
Vol 91 (7) ◽  
Author(s):  
Sebastian Unsleber ◽  
Dara P. S. McCutcheon ◽  
Michael Dambach ◽  
Matthias Lermer ◽  
Niels Gregersen ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Time Jitter ◽  
Two Photon ◽  
Pure Dephasing

Laser spectroscopy of atoms approaching a surface of ionic crystalline material: evidence of pure dephasing due to stochastic near fields

2007 ◽  
Author(s):  
V. V. Khromov ◽  
N. B. Leonov ◽  
S. G. Przhibel'skii ◽  
V. N. Smirnov ◽  
E. V. Vaschenko ◽  
...  
Keyword(s):  
Laser Spectroscopy ◽  
Crystalline Material ◽  
Pure Dephasing ◽  
Material Evidence

scholarly journals Pure dephasing of a vibrational adbond

1987 ◽  
Vol 87 (12) ◽  
pp. 7307-7314 ◽  
Author(s):  
Sander van Smaalen ◽  
Thomas F. George
Keyword(s):  
Pure Dephasing

scholarly journals Localisation determines the optimal noise rate for quantum transport

2021 ◽  
Author(s):  
Alexandre Coates ◽  
Brendon W Lovett ◽  
Erik Gauger
Keyword(s):  
Energy Transport ◽  
Optimal Transport ◽  
Detailed Balance ◽  
Finite Size ◽  
Temperature Limit ◽  
Transport Efficiency ◽  
Size Dependent ◽  
Noise Rate ◽  
Pure Dephasing ◽  
The Impact

Abstract Environmental noise plays a key role in determining the efficiency of transport in quantum systems. However, disorder and localisation alter the impact of such noise on energy transport. To provide a deeper understanding of this relationship we perform a systematic study of the connection between eigenstate localisation and the optimal dephasing rate in 1D chains. The effects of energy gradients and disorder on chains of various lengths are evaluated and we demonstrate how optimal transport efficiency is determined by both size-independent, as well as size-dependent factors. By discussing how size-dependent influences emerge from finite size effects we establish when these effects are suppressed, and show that a simple power law captures the interplay between size-dependent and size-independent responses. Moving beyond phenomenological pure dephasing, we implement a finite temperature Bloch-Redfield model that captures detailed balance. We show that the relationship between localisation and optimal environmental coupling strength continues to apply at intermediate and high temperature but breaks down in the low temperature limit.

Experimental study of entanglement evolution in the presence of bit-flip and phase-shift noises

2017 ◽  
Vol 95 ◽  
pp. 147-150 ◽  
Author(s):  
Xia Liu ◽  
Lian-Zhen Cao ◽  
Jia-Qiang Zhao ◽  
Yang Yang ◽  
Huai-Xin Lu
Keyword(s):  
Experimental Study ◽  
Phase Shift ◽  
Entanglement Evolution ◽  
Bit Flip

The entanglement evolution between two entangled atoms

Pramana ◽  
2015 ◽  
Vol 86 (3) ◽  
pp. 495-502 ◽  
Author(s):  
XU ZONG-CHENG ◽  
LIANG MAI-LIN ◽  
ZHANG YA-TING ◽  
YAO JIAN-QUAN
Keyword(s):  
Entanglement Evolution ◽  
Entangled Atoms

THERMAL ENTANGLEMENT OF A TWO-QUTRIT XXZ SPIN CHAIN WITH DZIALOSHISKI-MORIYA INTERACTION

2009 ◽  
Vol 07 (05) ◽  
pp. 1021-1028
Author(s):  
XIAO SAN MA
Keyword(s):  
Spin Chain ◽  
Thermal Entanglement ◽  
Strong Anisotropy ◽  
Weak Anisotropy ◽  
Positive Role ◽  
Dm Interaction ◽  
Entanglement Evolution ◽  
Maximum Value ◽  
Moriya Interaction

The effect of Dzialoshiski-Moriya (DM) interaction and anisotropy on the thermal entanglement of a two-qutrit XXZ spin chain is investigated. Our analysis implies that the DM interaction and weak anisotropy can enhance the thermal entanglement to a maximum value while the strong anisotropy plays a positive role in shrinking thermal entanglement. Furthermore, we find that the entanglement evolution in terms of anisotropy is sensitive to weak anisotropy.

Sign in / Sign up

Export Citation Format

Share Document