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相关论文: Synthetic gauge fields for phonon transport in a n…

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Synthetic gauge fields have recently emerged, arising in the context of quantum simulations, topological matter, and the protected transportation of excitations against defects. For example, an ultracold atom experiences a light-induced…

光学 · 物理学 2021-03-31 Yuan Chen , Yan-Lei Zhang , Zhen Shen , Chang-Ling Zou , Guang-Can Guo , Chun-Hua Dong

Gauge magnetic fields have a close relation to breaking time-reversal symmetry in condensed matter. In the present of the gauge fields, we might observe nonreciprocal and topological transport. Inspired by these, there is a growing effort…

量子物理 · 物理学 2020-03-31 Xin Wang , Hong-Rong Li , Fu-Li Li

By considering gauge transformations on the macroscopic Maxwell's equations, a two dimensional gauge field, with its pseudo magnetic field in the real space, is identified as tilted anisotropy in the constitutive parameters. We show that…

光学 · 物理学 2015-08-05 Fu Liu , Jensen Li

The vibrations of a collection of ions in a microtrap array can be described in terms of hopping phonons. We show theoretically that the vibrational couplings may be tailored by using a gradient of the microtrap frequencies, together with a…

量子物理 · 物理学 2011-11-15 A. Bermudez , T. Schaetz , D. Porras

Electronic transport in low dimensions through a disordered medium leads to localization. The addition of gauge fields to disordered media leads to fundamental changes in the transport properties. For example, chiral edge states can emerge…

光学 · 物理学 2014-11-11 S. Mittal , J. Fan , S. Faez , A. Migdall , J. M. Taylor , M. Hafezi

There is a growing effort in creating chiral transport of sound waves. However, most approaches so far are confined to the macroscopic scale. Here, we propose a new approach suitable to the nanoscale which is based on pseudomagnetic fields.…

介观与纳米尺度物理 · 物理学 2017-09-06 Christian Brendel , Vittorio Peano , Oskar Painter , Florian Marquardt

Optomechanics offers a natural way to implement synthetic dynamical gauge fields, leading to synthetic electric fields for phonons and, as a consequence, to unidirectional light transport. Here we investigate the quantum dynamics of…

介观与纳米尺度物理 · 物理学 2019-10-21 Petr Zapletal , Andreas Nunnenkamp

This paper investigates the complex nonlinear dynamics of an optomechanical system featuring an optical cavity coupled to two mechanical resonators interconnected by a phase-dependent interaction. We specifically explore the role of this…

We introduce a topological gauge vector potential which influences spin wave excitations over arbitrary non-uniform, slowly moving magnetization distribution. The time-component of the gauge potential plays a principal role in magnetization…

其他凝聚态物理 · 物理学 2009-07-15 Konstantin Y. Gusliyenko , Gloria R. Aranda , Julian M. Gonzalez

Engineering phonon transport in physical systems is a subject of interest in the study of materials and plays a crucial role in controlling energy and heat transfer. Of particular interest are non-reciprocal phononic systems, which in…

介观与纳米尺度物理 · 物理学 2018-03-28 Alireza Seif , Wade DeGottardi , Keivan Esfarjani , Mohammad Hafezi

Recent advances in cavity-optomechanics have now made it possible to use light not just as a passive measuring device of mechanical motion, but also to manipulate the motion of mechanical objects down to the level of individual quanta of…

介观与纳米尺度物理 · 物理学 2023-08-17 Hengjiang Ren , Tirth Shah , Hannes Pfeifer , Christian Brendel , Vittorio Peano , Florian Marquardt , Oskar Painter

Photonic gauge potentials are crucial for manipulating charge-neutral photons like their counterpart electrons in the electromagnetic field, allowing analogous Aharonov-Bohm effect in photonics and paving the way for critical applications…

Artificial magnetic fields break time-reversal symmetry in engineered materials--also known as metamaterials, enabling robust, topological transport of neutral excitations, much like electronic conduction edge channels in the integer…

介观与纳米尺度物理 · 物理学 2025-02-03 Jesse J. Slim , Javier del Pino , Ewold Verhagen

Phonons are responsible for limiting both the electron mobility and the spin relaxation time in solids and provide a mechanism for thermal transport. In view of a possible transistor function as well as spintronics applications in graphene…

介观与纳米尺度物理 · 物理学 2011-10-07 Matthias Droth , Guido Burkard

The discovery of artificial gauge fields, controlling the dynamics of uncharged particles that otherwise elude the influence of standard electric or magnetic fields, has revolutionized the field of quantum simulation. Hence, developing new…

Gauge fields, real or synthetic, are crucial for understanding and manipulation of physical systems. The associated geometric phases can be measured, for example, from the Aharonov--Bohm interference. So far, real-space realizations of…

We propose a platform for robust and tunable nonreciprocal phonon transport based on arrays of optomechanical microtoroids. In our approach, time-reversal symmetry is broken by the interplay of photonic spin-orbit coupling, engineered using…

介观与纳米尺度物理 · 物理学 2020-02-24 Claudio Sanavio , Vittorio Peano , André Xuereb

We present a scheme for tuning and controlling nano mechanical resonators by subjecting them to electrostatic gradient fields, provided by nearby tip electrodes. We show that this approach enables access to a novel regime of optomechanics,…

量子物理 · 物理学 2014-03-06 S. Rips , I. Wilson-Rae , M. J. Hartmann

Photons are weak particles that do not directly couple to magnetic fields. However, it is possible to generate a photonic gauge field by breaking reciprocity such that the phase of light depends on its direction of propagation. This…

光学 · 物理学 2018-03-07 Daniel Hey , Enbang Li

Nonlinear optomechanical coupling is the basis for many potential future experiments in quantum optomechanics (e.g., quantum non-demolition measurements, preparation of non-classical states), which to date have been difficult to realize due…

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