scholarly journals Quantum tunneling dynamics in a complex-valued Sachdev-Ye-Kitaev model quench-coupled to a cool bath

2021 ◽  
Vol 104 (11) ◽  
Author(s):  
Y. Cheipesh ◽  
A. I. Pavlov ◽  
V. Ohanesjan ◽  
K. Schalm ◽  
N. V. Gnezdilov
Keyword(s):  
Quantum Tunneling ◽  
Kitaev Model ◽  
Tunneling Dynamics ◽  
Complex Valued

scholarly journals Scheme for accelerating quantum tunneling dynamics

2016 ◽  
Vol 93 (2) ◽  
Author(s):  
Anvar Khujakulov ◽  
Katsuhiro Nakamura
Keyword(s):  
Quantum Tunneling ◽  
Tunneling Dynamics

Quantum tunneling dynamics using entangled trajectories: general potentials

2009 ◽  
Vol 11 (10) ◽  
pp. 1588 ◽  
Author(s):  
Ashu Wang ◽  
Yujun Zheng ◽  
Craig C. Martens ◽  
Weiyi Ren
Keyword(s):  
Quantum Tunneling ◽  
Tunneling Dynamics

scholarly journals Tunneling dynamics in cosmological bounce models

2021 ◽  
Vol 2021 (11) ◽  
pp. 037
Author(s):  
Martin Bojowald ◽  
Brenda Jones
Keyword(s):  
Quantum Tunneling ◽  
Quantum Dynamics ◽  
Scale Factor ◽  
Traditional Treatment ◽  
Tunneling Times ◽  
New Information ◽  
Classical Singularity ◽  
Tunneling Dynamics

Abstract Quasiclassical methods are used to define dynamical tunneling times in models of quantum cosmological bounces. These methods provide relevant new information compared with the traditional treatment of quantum tunneling by means of tunneling probabilities. As shown here, the quantum dynamics in bounce models is not secure from reaching zero scale factor, re-opening the question of how the classical singularity may be avoided. Moreover, in the examples studied here, tunneling times remain small even for large barriers, highlighting the quantum instability of underlying bounce models.

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