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相关论文: Aharonov-Bohm scattering on a cone

200 篇论文

In the present work, we investigated the quantum behavior of a charged particle that is under the effect of a uniform magnetic external field. We assumed that space-time has a space-like dislocation with an internal magnetic flux. We…

量子物理 · 物理学 2020-11-05 B. C. Lütfüoğlu , J. Kříž , P. Sedaghatnia , H. Hassanabadi

Virtual photons play an essential role in the locally realistic description of the Aharonov-Bohm interference. We show that the effect of virtual photons in the interferometer is manifested by a change in their spectrum. In particular, when…

量子物理 · 物理学 2025-06-11 Kicheon Kang

In the context of the vacuum polarization effect, we consider the backreaction of the energy-momentum tensor of a charged scalar field on the background metric of a cosmic string carrying a magnetic flux $\Phi$. Working within the…

广义相对论与量子宇宙学 · 物理学 2009-10-30 M. E. X. Guimaraes

In this work the bound state and scattering problems for a spin-1/2 particle undergone to an Aharonov-Bohm potential in a conical space in the nonrelativistic limit are considered. The presence of a \delta-function singularity, which comes…

量子物理 · 物理学 2013-10-25 F. M. Andrade , E. O. Silva , M. Pereira

We study a generalization of Aharonov-Bohm effect, the potential effect. The discussion is focused on field-free effects in simply connected region, which obviously can not have any local field-flux. Among the published discussions about…

量子物理 · 物理学 2016-08-15 Jùn Líu

We investigate experimentally transport through ring-shaped devices etched in graphene and observe clear Aharonov-Bohm conductance oscillations. The temperature dependence of the oscillation amplitude indicates that below 1 K the phase…

In their seminal paper Aharonov and Bohm (1959) claimed that electromagnetic fields can act at a distance on charged particles even if they are identically zero in the region of space where the particles propagate. They proposed two…

数学物理 · 物理学 2011-07-15 Ricardo Weder

We show that the Aharonov-Bohm effect finds a natural description in the setting of QFT on curved spacetimes in terms of superselection sectors of local observables. The extension of the analysis of superselection sectors from Minkowski…

数学物理 · 物理学 2020-12-02 Claudio Dappiaggi , Giuseppe Ruzzi , Ezio Vasselli

Aharonov-Bohm oscillations are studied in the magnetoconductance of a micron-sized open quantum ring coupled capacitively to a Coulomb-blockaded quantum dot. As the plunger gate of the dot is modulated and tuned through a conductance…

介观与纳米尺度物理 · 物理学 2016-08-31 L. Meier , A. Fuhrer , T. Ihn , K. Ensslin , W. Wegscheider , M. Bichler

We show that in the absence of a magnetic field the spectrum of the magnetic Schr\"odinger operator in an annulus depends on the cosine of the flux associated with the magnetic potential. This result follows from an analysis of a…

数学物理 · 物理学 2016-01-20 Gregory Eskin , James Ralston

It is shown that only the infinite angular momentum quantum states contribute to the incident wave in Aharonov-Bohm (AB) scattering. This result is clearly shown by recalculating the AB calculation with arbitrary decomposition of summation…

高能物理 - 理论 · 物理学 2007-05-23 Sahng-Kyoon Yoo , D. K. Park

By using the complex angular momentum method, we provide a semiclassical analysis of electron scattering by a magnetic vortex of Aharonov-Bohm-type. Regge poles of the $S$-matrix are associated with surface waves orbiting around the vortex…

凝聚态物理 · 物理学 2007-05-23 Yves Décanini , Antoine Folacci

The Aharonov-Bohm effect in a one-dimensional (1D) ring containing a gas of fractionally charged excitations is considered. It is shown that the low temperature behavior of the system is identical to that of free electrons with (integer)…

凝聚态物理 · 物理学 2016-08-15 I. V. Krive , P. Sandström , R. I. Shekhter , M. Jonson

There is a consensus today that the the main lesson of the Aharonov-Bohm effect is that a picture of electromagnetism based on the local action of the field strengths is not possible in quantum mechanics. Contrary to this statement it is…

量子物理 · 物理学 2015-05-30 Lev Vaidman

The relativistic scattering of a spin-1/2 particle from an infinitely long solenoid is considered in the framework of covariant perturbation theory. The first order term agrees with the corresponding term in the series expansion of the…

高能物理 - 理论 · 物理学 2009-10-31 M. Boz , N. K. Pak

The interaction between a quantum charge and a dynamic source of a magnetic field is considered in the Aharonov-Bohm scenario. It is shown that, in weak interactions with a post-selection of the source, the effective vector potential is,…

量子物理 · 物理学 2023-05-23 Ismael L. Paiva , Yakir Aharonov , Jeff Tollaksen , Mordecai Waegell

We study the chaotic scattering through an Aharonov-Bohm ring containing two cavities. One of the cavities has well-separated resonant levels while the other is chaotic, and is treated by random matrix theory. The conductance through the…

介观与纳米尺度物理 · 物理学 2007-05-23 Kazutaka Takahashi , Tomosuke Aono

We consider formal quantum hamiltonian of a charged particle on the Poincar\'e disk in the presence of an Aharonov-Bohm magnetic vortex and a uniform magnetic field. It is shown that this hamiltonian admits a four-parameter family of…

数学物理 · 物理学 2008-11-26 O. Lisovyy

We propose a theoretical model to study the single-electron spectra of the concentric quantum double ring fabricated lately by self-assembled technique. Exact diagonalization method is employed to examine the Aharonov-Bohm effect in the…

介观与纳米尺度物理 · 物理学 2009-11-11 G. Y. Chen , Y. N. Chen , D. S. Chuu

A calculation of the Aharonov-Bohm wave function is presented. The result is a series of confluent hypergeometric functions which is finite at the forward direction.

高能物理 - 理论 · 物理学 2009-10-28 M. Alvarez