Results 81 to 90 of about 1,699,778 (381)
Fast quantum control in dissipative systems using dissipationless solutions
, 2018 We report on a systematic geometric procedure, built up on solutions designed in the absence of dissipation, to mitigate the effects of dissipation in the control of open quantum systems.
Guéry-Odelin, David, Impens, François
core +2 more sources
Non-Hermitian dynamics without dissipation in quantum systems [PDF]
Physical Review A, 2019 Models based on non-Hermitian Hamiltonians can exhibit a range of surprising and potentially useful phenomena. Physical realizations typically involve couplings to sources of incoherent gain and loss; this is problematic in quantum settings, because of ...
Yu-Xin Wang, A. Clerk
semanticscholar +1 more source
Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States
Advanced Functional Materials, EarlyView.This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu +3 more
wiley +1 more source
Fidelity-dissipation relations in quantum gates
Physical Review ResearchAccurate quantum computing relies on the precision of quantum gates. However, quantum gates in practice are generally affected by dissipative environments, which can significantly reduce their fidelity.
Tan Van Vu +2 more
doaj +1 more source
Can quantum regression theorem be reconciled with quantum fluctuation dissipation theorem ?
, 2002 In the attempt to derive the regression theorem from the fluctuation dissipation theorem several authors claim the violation of the former theorem in the quantum case.
Gruzinskis, V. +3 more
core +1 more source
Manufacturing low dissipation superconducting quantum processors [PDF]
International Electron Devices Meeting, 2019 Enabling applications for solid state quantum technology will require systematically reducing noise, particularly dissipation, in these systems. Yet, when multiple decay channels are present in a system with similar weight, resolution to distinguish ...
A. Nersisyan +12 more
semanticscholar +1 more source
Double Helical Plasmonic Antennas
Advanced Functional Materials, EarlyView.Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin +7 more
wiley +1 more source
Memory-induced weak dissipation in fractional-time-derivative quantum Lindblad-based model
APL QuantumModeling the interaction between a quantum system and its environment is crucial for practical quantum technologies. The Lindblad master equation is the simplest equation to understand this interaction.
Chun Yun Kee, L. K. Ang
doaj +1 more source
Mixed-State Quantum Spin Liquids and Dynamical Anyon Condensations in Kitaev Lindbladians [PDF]
QuantumQuantum spin liquids and anyons, used to be subjects of condensed matter physics, now are realized in various platforms of qubits, offering unprecedented opportunities to investigate fundamental physics of many-body quantum entangled states.
Kyusung Hwang
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Simulation of open-quantum-system dynamics using the quantum Zeno effect
Physical Review Research, 2020 We suggest a quantum simulator that allows to study the role of memory effects in the dynamics of open quantum systems. A particular feature of our simulator is the ability to engineer both Markovian and non-Markovian dynamics by means of quantum ...
Sabrina Patsch +2 more
doaj +1 more source