Results 11 to 20 of about 2,016,173 (346)
On Quantum Speedups for Nonconvex Optimization via Quantum Tunneling Walks [PDF]
Quantum, 2022 Classical algorithms are often not effective for solving nonconvex optimization problems where local minima are separated by high barriers. In this paper, we explore possible quantum speedups for nonconvex optimization by leveraging the global effect of ...
Yizhou Liu, Weijie Su, Tongyang Li
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Macroscopic Quantum Tunneling: From Quantum Vortices to Black Holes and Universe [PDF]
Journal of Experimental and Theoretical Physics, 2021 The paper has been prepared for the JETP issue, dedicated to the 95th anniversary of the birth of E.I. Rashba. E. Rashba stood at the origins of macroscopic quantum tunneling together with his colleagues from the Landau Institute S.V.
G. Volovik
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First Detection and Tunneling Time of a Quantum Walk [PDF]
Entropy, 2023 We consider the first detection problem for a one-dimensional quantum walk with repeated local measurements. Employing the stroboscopic projective measurement protocol and the renewal equation, we study the effect of tunneling on the detection time ...
Zhenbo Ni, Yujun Zheng
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Quantum tunneling of thermal protons through pristine graphene. [PDF]
Journal of Chemical Physics, 2016 Engineering of atomically thin membranes for hydrogen isotope separation is an actual challenge which has a broad range of applications. Recent experiments [M. Lozada-Hidalgo et al., Science 351, 68 (2016)] unambiguously demonstrate an order-of-magnitude
I. Poltavsky +3 more
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Quantum tunneling of massive spin-1 particles from non-stationary metrics [PDF]
General Relativity and Gravitation, 2015 We focus on the HR of massive vector (spin-1) particles tunneling from Schwarzschild BH expressed in the Kruskal–Szekeres and dynamic Lemaitre coordinates.
Dr Izzet Sakalli +2 more
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Quantum computing for quantum tunneling [PDF]
Physical Review D, 2021 We demonstrate how quantum field theory problems can be embedded on quantum annealers. The general method we use is a discretisation of the field theory problem into a general Ising model, with the continuous field values being encoded into Ising spin chains.
Steven Abel +2 more
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Skyrmion helicity: Quantization and quantum tunneling effects [PDF]
Physical review B, 2022 We derive the quantization of magnetic helicity in the solid-state and demonstrate tunable macroscopic quantum tunneling, coherence, and oscillation for a skyrmion spin texture stabilized in frustrated magnets. We also discuss the parameter space for the
C. Psaroudaki, C. Panagopoulos
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Quantum evolution in terms of mechanical motion [PDF]
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2021 Quantum tunneling is considered from the point of view of local realism. It is concluded that a quantum object tunneling through a potential barrier cannot be interpreted as a point-like particle because such an interpretation generates a contradiction ...
Alexey Yu. Samarin
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Quantum battles in attoscience: tunnelling [PDF]
The European Physical Journal D, 2021 Abstract What is the nature of tunnelling? This yet unanswered question is as pertinent today as it was at the dawn of quantum mechanics. This article presents a cross section of current perspectives on the interpretation, computational modelling, and numerical investigation of tunnelling processes in attosecond physics
Cornelia Hofmann +4 more
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Photovoltaic properties enhanced by the tunneling effect in a coupled quantum dot photocell
Results in Physics, 2021 Double quantum dots (DQDs) have emerged as versatile and efficient absorbing light devices owing to their more adjusting parameters than the single QD’s.
Sheng-Qiang Zhong +2 more
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