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Probing critical phenomena in open quantum systems using atom arrays.
ScienceAt continuous phase transitions, quantum many-body systems exhibit complex, emergent behavior. Most notably, at a quantum critical point, correlations decay as a power law, with exponents determined by a set of universal scaling dimensions ...
Fang Fang +10 more
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OPEN QUANTUM SYSTEMS AND COMPLETE POSITIVITY
Cybernetics and Systems, 2001The dynamics of an open quantum system is usually assumed to be generated by time-evolution equations of Lindblad form. It follows that the time evolutors are completely positive. Far from being just a useful technicality, complete positivity is one of the many aspects of quantum entanglement and is necessary to avoid physical inconsistencies.
Fabio Benatti +2 more
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The proposed book is a bridge between the foundations of quantum mechanics and the theory of open quantum systems. The treatment of open quantum systems is a rapidly growing subject, of interest to an ever-increasing number of scientists. The main focus is on overcoming the idealization of perfect isolation of a quantum system, so as to allow for a ...
Alexander A. Lisyansky +3 more
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Alexander A. Lisyansky +3 more
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On Markovian Limit in Quantum Open Systems
Open Systems & Information Dynamics, 2002The dynamics of spherical harmonic oscillator interacting with radiation field is investigated. It is shown that the irreversibility of time evolution is due to the appearance of resonances. Reduced dynamics is given in terms of multi-time correlation functions in the Markovian limit, which includes higher order corrections in the coupling constant.
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2020
In this chapter, we introduce and study the notion of open quantum system, generalizing that of the quantum system we have dealt with so far. This notion lies at the foundation of quantum information theory.
Stephen J. Gustafson +1 more
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In this chapter, we introduce and study the notion of open quantum system, generalizing that of the quantum system we have dealt with so far. This notion lies at the foundation of quantum information theory.
Stephen J. Gustafson +1 more
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The Theory of Open Quantum Systems
, 2002H. Breuer, Francesco Petruccione
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1996
To understand quantum dynamics it is essential to realize that observable systems are always subsystems of a larger one — ultimately of the whole universe. The notion of an isolated system makes sense only as an approximation depending on the concrete situation.
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To understand quantum dynamics it is essential to realize that observable systems are always subsystems of a larger one — ultimately of the whole universe. The notion of an isolated system makes sense only as an approximation depending on the concrete situation.
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Simulation methods for open quantum many-body systems
Reviews of Modern Physics, 2021Hendrik Weimer +2 more
exaly
Operator Growth in Open Quantum Systems
Physical Review Letters, 2023Thomas Schuster, Norman Y Yao
exaly