scholarly journals Quantum Quench Dynamics–Crossover Phenomena in Nonequilibrium Correlated Quantum Systems (Final Technical Report)

2020 ◽  
Author(s):  
Stephan Haas
Keyword(s):  
Quantum Systems ◽  
Quantum Quench ◽  
Technical Report ◽  
Correlated Quantum Systems ◽  
Quench Dynamics

scholarly journals Quantum to classical crossover of Floquet engineering in correlated quantum systems

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
Michael A. Sentef ◽  
Jiajun Li ◽  
Fabian Künzel ◽  
Martin Eckstein
Keyword(s):  
Quantum Systems ◽  
Correlated Quantum Systems

scholarly journals Interacting bosonic flux ladders with a synthetic dimension: Ground-state phases and quantum quench dynamics

2020 ◽  
Vol 102 (5) ◽  
Author(s):  
Maximilian Buser ◽  
Claudius Hubig ◽  
Ulrich Schollwöck ◽  
Leticia Tarruell ◽  
Fabian Heidrich-Meisner
Keyword(s):  
Ground State ◽  
Quantum Quench ◽  
Quench Dynamics ◽  
Ground State Phases

FAST MAXIMUM ENTROPY ALGORITHM FOR ILL-POSED PROBLEMS

1994 ◽  
Vol 05 (06) ◽  
pp. 987-995 ◽  
Author(s):  
S.V. MESHKOV ◽  
D.V. BERKOV
Keyword(s):  
Maximum Entropy ◽  
Inequality Constraints ◽  
Quantum Systems ◽  
Quadratic Functional ◽  
Strongly Correlated ◽  
Imaginary Time ◽  
Linear Inequality Constraints ◽  
Ill Posed ◽  
Correlated Quantum Systems ◽  
Maxent Approach

The fast algorithm of the Maximum Entropy (MaxEnt) numerical solution of the linear inverse problem is described. The minimization of a general functional intrinsic to the MaxEnt approach is reduced to an iteration procedure with each step being a constrained least-squares problem (minimization of a quadratic functional with linear inequality constraints). The algorithm is structurally simple and can be assembled from blocks available in standard program libraries. The algorithm is tested on “toy” tasks with exponential kernel, as well as on practical problems of the recovery of the spectral density of strongly correlated quantum systems from the imaginary time Green’s functions obtained by Monte Carlo.

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