Results 51 to 60 of about 1,995,098 (263)
Coherent superconducting quantum pump [PDF]
Physical Review B, 2012 We demonstrate non-adiabatic charge pumping utilizing a sequence of coherent oscillations between a superconducting island and two reservoirs. Our method, based on pulsed quantum state manipulations, allows to speedup charge pumping to a rate which is limited by the coupling between the island and the reservoirs given by the Josephson energy.
Hoehne, F. +6 more
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Thermally-induced qubit coherence in quantum electromechanics
New Journal of Physics, 2022 Quantum coherence, the ability of a quantum system to be in a superposition of orthogonal quantum states, is a distinct feature of the quantum mechanics, thus marking a deviation from classical physics. Coherence finds its applications in quantum sensing
N Etehadi Abari +2 more
doaj +1 more source
Coherent quantum phase slip [PDF]
Nature, 2012 A hundred years after discovery of superconductivity, one fundamental prediction of the theory, the coherent quantum phase slip (CQPS), has not been observed. CQPS is a phenomenon exactly dual to the Josephson effect: whilst the latter is a coherent transfer of charges between superconducting contacts, the former is a coherent transfer of vortices or ...
Astafiev, O.V. +7 more
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Time-of-flight electron energy loss spectroscopy using TM110 deflection cavities
Structural Dynamics, 2016 We demonstrate the use of two TM110 resonant cavities to generate ultrashort electron pulses and subsequently measure electron energy losses in a time-of-flight type of setup.
W. Verhoeven +6 more
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Can two quantum Cheshire cats exchange grins?
New Journal of Physics, 2020 A common-sense perception of a physical system is that it is inseparable from its physical properties. The notion of quantum Cheshire cat challenges this, as far as quantum systems are concerned.
Debmalya Das, Arun Kumar Pati
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Structural Dynamics, 2018 The possibility to perform high-resolution time-resolved electron energy loss spectroscopy has the potential to impact a broad range of research fields. Resolving small energy losses with ultrashort electron pulses, however, is an enormous challenge due ...
W. Verhoeven +5 more
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Coherence-Preserving Quantum Bits [PDF]
Physical Review Letters, 2001 5 pages, 1 ...
Bacon, D., Brown, K. R., Whaley, K. B.
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Coherence and Entanglement Dynamics in Training Variational Quantum Perceptron
Entropy, 2020 In quantum computation, what contributes supremacy of quantum computation? One of the candidates is known to be a quantum coherence because it is a resource used in the various quantum algorithms.
Min Namkung, Younghun Kwon
doaj +1 more source
Quantum criticality at high temperature revealed by spin echo
New Journal of Physics, 2013 Quantum criticality occurs when the ground state of a macroscopic quantum system changes abruptly on tuning system parameters. It is an important indicator of new quantum matters emerging.
Shao-Wen Chen +2 more
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Dynamical resource theory of quantum coherence [PDF]
Physical Review Research, 2019 Decoherence is all around us. Every quantum system that interacts with the environment is doomed to decohere. The preservation of quantum coherence is one of the major challenges faced in quantum technologies, but its use as a resource is very promising ...
G. Saxena, E. Chitambar, G. Gour
semanticscholar +1 more source