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A spatially-selective and internal-state-selective triggering pulse is an important component to realize the unitary dynamical state-locking process which may be used to realize the reversible and unitary halting protocol and construct the…

量子物理 · 物理学 2013-09-18 Xijia Miao

The role of the electron-hole symmetry breaking is investigated for a symmetrical commutative two-level system in a metal using the multiplicative renormalization group in a straightforward way. The role of the symmetries of the model and…

强关联电子 · 物理学 2009-10-30 A. Zawadowski , G. Zarand , P. Nozieres , K. Vladar , G. T. Zimanyi

Based on the general form of the master equation for open quantum systems the tunneling is considered. Using the path integral technique a simple closed form expression for the tunneling rate through a parabolic barrier is obtained. The…

凝聚态物理 · 物理学 2009-10-30 G. G. Adamian , N. V. Antonenko , W. Scheid

The effect of inelastic scattering on quantum tunneling through a rectangular potential barrier, of length $L$, containing randomly distributed impurities, is considered. It is shown that, despite the fact that the inelastic transition…

无序系统与神经网络 · 物理学 2007-05-23 Alex Levchenko

We revisit the problem of quantum tunneling for a particle moving in the continuum, and in the absence of a magnetic field. In all spatial dimensions, we extend previous results to the case where the single-well potential satisfies…

数学物理 · 物理学 2025-06-17 Charles L. Fefferman , Jacob Shapiro , Michael I. Weinstein

We address a learning-based quantum error mitigation method, which utilizes deep neural network applied at the postprocessing stage, and study its performance in presence of different types of quantum noises. We concentrate on the…

量子物理 · 物理学 2024-02-29 A. A. Zhukov , W. V. Pogosov

Single electron tunneling and its transport statistics have been studied for some time using high precision charge detectors. However, this type of detection requires advanced lithography, optimized material systems and low temperatures…

This study aims to address the nature of state change, measurement, and probabilistic outcomes in non-relativistic quantum mechanics. We consider a pair of particles that interact in a one-dimensional setting via a delta-function potential.…

量子物理 · 物理学 2026-01-13 Olivia Pomerenk , Charles S. Peskin

We consider the tunneling of localized excitations (many boson bound states) in the presence of a bosonic bath. We show both analytically and numerically that the bath influence results in a dramatical enhancement of the amplitude of the…

统计力学 · 物理学 2016-08-31 S. Flach , V. Fleurov , A. A. Ovchinnikov

We study the hopping transport of a quantum particle through randomly diluted percolation clusters in two dimensions realized both on the square and triangular lattices. We investigate the nature of localization of the particle by…

无序系统与神经网络 · 物理学 2007-09-27 Md Fhokrul Islam , Hisao Nakanishi

We present a scalable underapproximation of the terminal hitting time stochastic reach-avoid probability at a given initial condition, for verification of high-dimensional stochastic LTI systems. While several approximation techniques have…

系统与控制 · 计算机科学 2017-05-18 Abraham P. Vinod , Meeko M. K. Oishi

We study charging effects and tunneling in the single electron box. Tunneling mixes different charge states and in the nonperturbative regime the charge in the island may be strongly screened. When charge states are nearly degenerate the…

凝聚态物理 · 物理学 2009-10-22 G. Falci , J. Heins , Gerd Schoen , Gergely T. Zimanyi

The expansion of a harmonic potential that holds a quantum particle may be realized without any final particle excitation but much faster than adiabatically via "shortcuts to adiabaticity" (STA). While ideally the process time can be…

量子物理 · 物理学 2016-09-28 Yang-Yang Cui , Xi Chen , J. G. Muga

We consider a phase-coherent system of two parallel quantum wires that are coupled via a tunneling barrier of finite length. The usual perturbative treatment of tunneling fails in this case, even in the diffusive limit, once the length L of…

介观与纳米尺度物理 · 物理学 2009-11-07 Daniel Boese , Michele Governale , A. Rosch , U. Zuelicke

In recent years the notion of intrinsic decoherence and dephasing of a particle interacting with its environment is being investigated intensively. This has an important bearing on a plausible causal connection between incoherent c-axis…

超导电性 · 物理学 2007-05-23 T. P. Pareek , A. M. Jayannavar , N. Kumar

We examine the robustness of single-molecule tunneling diodes to thermal-environmental effects. The diode comprises three fragments: two different conjugated chemical groups at the boundaries, and a saturated moiety in between, breaking…

介观与纳米尺度物理 · 物理学 2015-12-29 Michael Kilgour , Dvira Segal

Diffusive Shock Acceleration (DSA) cannot efficiently accelerate particles without the presence of self-consistently generated or pre-existing strong turbulence ($ \delta B/B \sim 1 $) in the vicinity of the shock. The problem we address in…

高能天体物理现象 · 物理学 2018-05-23 Christian Garrel , Loukas Vlahos , Heinz Isliker , Theophilos Pisokas

Although the roll/streak structure is ubiquitous in pre-transitional wall-bounded shear flow, this structure is linearly stable if the idealization of laminar flow is made. Lacking an instability, the large transient growth of the…

流体动力学 · 物理学 2017-04-05 Brian F. Farrell , Petros J. Ioannou , Marios-Andreas Nikolaidis

We study quantum tunneling for the de Sitter radiation in the planar coordinates and global coordinates, which are nonstationary coordinates and describe the expanding geometry. Using the phase-integral approximation for the Hamilton-Jacobi…

高能物理 - 理论 · 物理学 2014-11-21 Sang Pyo Kim

The single-mode Rayleigh-Taylor instability (smRTI) is well defined, poorly understood, and applicable to many fluid flows directly and through its relationship to multi-mode Rayleigh-Taylor models. This study reproduces three low-Atwood…

流体动力学 · 物理学 2016-03-07 Maxwell Hutchinson