Results 21 to 30 of about 133,730 (253)
A study of quantum correlations in open quantum systems [PDF]
Quantum Information and Computation, 2011 In this work, we study quantum correlations in mixed states. The states studied are modeled by a two-qubit system interacting with its environment via a quantum non demolition (purely dephasing) as well as dissipative type of interaction. The entanglement dynamics of this two qubit system is analyzed.
Indranil Chakrabarty +2 more
openaire +2 more sources
Open quantum systems are harder to track than open classical systems [PDF]
Quantum, 2019 For a Markovian (in the strongest sense) open quantum system it is possible, by continuously monitoring the environment, to perfectly track the system; that is, to know the stochastically evolving pure state of the system without altering the master ...
Prahlad Warszawski, Howard M. Wiseman
doaj +1 more source
Identifiability of open quantum systems [PDF]
Physical Review A, 2014 We provide a general framework for the identification of open quantum systems. By looking at the input-output behavior, we try to identify the system inside a black box in which some Markovian time-evolution takes place. Due to the generally irreversible nature of the dynamics, it is difficult to assure full controllability over the system.
Burgarth, Daniel, Yuasa, Kazuya
openaire +2 more sources
Multifractality of open quantum systems [PDF]
Physical Review E, 2019 16 pages, 12 figures; closest to published ...
Bilen, Agustín M. +3 more
openaire +5 more sources
Divergences in open quantum systems
Journal of High Energy Physics, 2018 We show that for cubic scalar field theories in five and more spacetime dimensions, and for the T = 0 limit of the Caldeira-Leggett model, the quantum master equation for long-wavelength modes initially unentangled from short-distance modes, and at ...
Cesar Agón, Albion Lawrence
doaj +1 more source
Quantum dynamics in open quantum-classical systems [PDF]
Journal of Physics: Condensed Matter, 2015 Often quantum systems are not isolated and interactions with their environments must be taken into account. In such open quantum systems these environmental interactions can lead to decoherence and dissipation, which have a marked influence on the properties of the quantum system.
openaire +3 more sources
Transitionless quantum driving in open quantum systems
New Journal of Physics, 2014 We extend the concept of superadiabatic dynamics, or transitionless quantum driving, to quantum open systems whose evolution is governed by a master equation in the Lindblad form.
G Vacanti +5 more
doaj +1 more source
Krylov complexity in open quantum systems
Physical Review Research, 2023 Krylov complexity is a measure of operator complexity that exhibits universal behavior and bounds a large class of other measures. In this paper, we generalize Krylov complexity from a closed system to an open system coupled to a Markovian bath, where ...
Chang Liu, Haifeng Tang, Hui Zhai
doaj +1 more source
Entanglement Degradation in Two Interacting Qubits Coupled to Dephasing Environments
Entropy, 2023 One of the main obstacles toward building efficient quantum computing systems is decoherence, where the inevitable interaction between the qubits and the surrounding environment leads to a vanishing entanglement.
Rahma Abdelmagid +2 more
doaj +1 more source
Adaptive variational simulation for open quantum systems [PDF]
QuantumEmerging quantum hardware provides new possibilities for quantum simulation. While much of the research has focused on simulating closed quantum systems, the real-world quantum systems are mostly open.
Huo Chen +3 more
doaj +1 more source