Results 81 to 90 of about 1,699,778 (381)

Fast quantum control in dissipative systems using dissipationless solutions

open access: yes, 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]

open access: yesPhysical 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

open access: yesAdvanced 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

open access: yesPhysical Review Research
Accurate 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 ?

open access: yes, 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]

open access: yesInternational 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

open access: yesAdvanced 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

open access: yesAPL Quantum
Modeling 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]

open access: yesQuantum
Quantum 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
doaj   +1 more source

Simulation of open-quantum-system dynamics using the quantum Zeno effect

open access: yesPhysical 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

Home - About - Disclaimer - Privacy