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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
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Open quantum system violates generalized Pauli constraints on quantum device
Communications Physics, 2023 The Pauli exclusion principle governs the fundamental structure and function of fermionic systems from molecules to materials. Nonetheless, when such a fermionic system is in a pure state, it is subject to additional restrictions known as the generalized
Irma Avdic +2 more
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Two-Unitary Decomposition Algorithm and Open Quantum System Simulation [PDF]
Quantum, 2023 Simulating general quantum processes that describe realistic interactions of quantum systems following a non-unitary evolution is challenging for conventional quantum computers that directly implement unitary gates.
Nishchay Suri +5 more
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Dissipation-induced Liouville-Majorana modes in open quantum system
Physical Review Research, 2023 In open quantum systems, topological edge states rapidly lose coherence, making them unsuitable for topological quantum computation and quantum memory.
Xing-Shuo Xu +3 more
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Tunable Non-Markovianity for Bosonic Quantum Memristors
Entropy, 2023 We studied the tunable control of the non-Markovianity of a bosonic mode due to its coupling to a set of auxiliary qubits, both embedded in a thermal reservoir. Specifically, we considered a single cavity mode coupled to auxiliary qubits described by the
Jia-Liang Tang +3 more
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Quantum error correction under numerically exact open-quantum-system dynamics
Physical Review Research, 2023 The known quantum error-correcting codes are typically built on approximative open-quantum-system models such as Born-Markov master equations. However, it is an open question how such codes perform in actual physical systems that, to some extent ...
Aravind P. Babu +5 more
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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
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Assisted quantum simulation of open quantum systems
iScience, 2023 Universal quantum algorithms (UQA) implemented on fault-tolerant quantum computers are expected to achieve an exponential speedup over classical counterparts. However, the deep quantum circuits makes the UQA implausible in the current era. With only the noisy intermediate-scale quantum (NISQ) devices in hand, we introduce the quantum-assisted quantum ...
Jin-Min Liang +3 more
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Phase transitions in the classical simulability of open quantum systems
Scientific Reports, 2023 We introduce a Langevin unravelling of the density matrix evolution of an open quantum system over matrix product states, which we term the time-dependent variational principle-Langevin equation.
F. Azad +3 more
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Multifractality of open quantum systems [PDF]
Physical Review E, 2019 16 pages, 12 figures; closest to published ...
Bilen, Agustín M. +3 more
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