scholarly journals Entropy and uncertainty of squeezed quantum open systems

1997 ◽  
Vol 55 (10) ◽  
pp. 5917-5935 ◽  
Author(s):  
Don Koks ◽  
Andrew Matacz ◽  
B. L. Hu
Keyword(s):  
Open Systems ◽  
Quantum Open Systems

Quantum open systems

2009 ◽  
pp. 60-90
Author(s):  
Esteban A. Calzetta ◽  
Bei-Lok B. Hu
Keyword(s):  
Open Systems ◽  
Quantum Open Systems

scholarly journals Continuous monitoring of energy in quantum open systems

2019 ◽  
Vol 99 (3) ◽  
Author(s):  
G. P. Martins ◽  
N. K. Bernardes ◽  
M. F. Santos
Keyword(s):  
Continuous Monitoring ◽  
Open Systems ◽  
Quantum Open Systems

scholarly journals From the GKLS Equation to the Theory of Solar and Fuel Cells

2017 ◽  
Vol 24 (03) ◽  
pp. 1740007 ◽  
Author(s):  
R. Alicki
Keyword(s):  
Fuel Cells ◽  
Quantum Information ◽  
Open Systems ◽  
Operational Definition ◽  
Quantum Model ◽  
Quantum Thermodynamics ◽  
Quantum Open Systems ◽  
Sound Theory ◽  
Wide Range ◽  
Definition Of

The mathematically sound theory of quantum open systems, formulated in the ’70s and highlighted by the discovery of Gorini-Kossakowski-Lindblad-Sudarshan (GKLS) equation, found a wide range of applications in various branches of physics and chemistry, notably in the field of quantum information and quantum thermodynamics. However, it took 40 years before this formalism has been applied to explain correctly the operation principles of long existing energy transducers like photovoltaic, thermoelectric and fuel cells. This long path is briefly reviewed from the author’s perspective. Finally, the new, fully quantum model of chemical engine based on GKLS equation and applicable to fuel cells or replicators is outlined. The model illustrates the difficulty with an entirely quantum operational definition of work, comparable to the problem of quantum measurement.

scholarly journals Quantum open systems and turbulence

2002 ◽  
Vol 65 (2) ◽  
Author(s):  
L. F. Santos ◽  
C. O. Escobar
Keyword(s):  
Open Systems ◽  
Quantum Open Systems

Memory effects in the relaxation of quantum open systems

1992 ◽  
Vol 97 (7) ◽  
pp. 5101-5107 ◽  
Author(s):  
Alberto Suárez ◽  
Robert Silbey ◽  
Irwin Oppenheim
Keyword(s):  
Open Systems ◽  
Memory Effects ◽  
Quantum Open Systems

scholarly journals Generating arbitrary topological windings of a non-Hermitian band

Science ◽  
2021 ◽  
Vol 371 (6535) ◽  
pp. 1240-1245
Author(s):  
Kai Wang ◽  
Avik Dutt ◽  
Ki Youl Yang ◽  
Casey C. Wojcik ◽  
Jelena Vučković ◽  
...  
Keyword(s):  
Energy Band ◽  
Ring Resonator ◽  
Open Systems ◽  
Synthesis And Characterization ◽  
Topological Feature ◽  
Nonconservative Systems ◽  
Quantum Open Systems ◽  
Topological Features ◽  
Energy Plane

The nontrivial topological features in the energy band of non-Hermitian systems provide promising pathways to achieve robust physical behaviors in classical or quantum open systems. A key topological feature of non-Hermitian systems is the nontrivial winding of the energy band in the complex energy plane. We provide experimental demonstrations of such nontrivial winding by implementing non-Hermitian lattice Hamiltonians along a frequency synthetic dimension formed in a ring resonator undergoing simultaneous phase and amplitude modulations, and by directly characterizing the complex band structures. Moreover, we show that the topological winding can be controlled by changing the modulation waveform. Our results allow for the synthesis and characterization of topologically nontrivial phases in nonconservative systems.

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