中文
相关论文

相关论文: Coherent control in atomic chains: to trap and rel…

200 篇论文

Coherent transport of atoms trapped in an optical lattice can be controlled by microwave-induced spin flips that correlate with site-to-site hopping. We study the controllability of homogeneous one-dimensional systems of noninteracting…

量子物理 · 物理学 2013-05-29 Brian E. Mischuck , Poul S. Jessen , Ivan H. Deutsch

We demonstrate the controlled coherent transport and splitting of atomic wave packets in spin-dependent optical lattice potentials. Such experiments open intriguing possibilities for quantum state engineering of many body states. After…

软凝聚态物质 · 物理学 2009-11-10 Olaf Mandel , Markus Greiner , Artur Widera , Tim Rom , Theodor W. Haensch , Immanuel Bloch

The coherent quantum transport of matter wave through a ring-shaped circuit attached to leads defines an iconic system in mesoscopic physics that has allowed both to explore fundamental questions in quantum science and to draw important…

量子气体 · 物理学 2025-06-17 Francesco Perciavalle , Oliver Morsch , Davide Rossini , Luigi Amico

Quantum control of the wave function of two interacting electrons confined in quasi-one-dimensional double-well semiconductor structures is demonstrated. The control strategies are based on the knowledge of the energy spectrum as a function…

介观与纳米尺度物理 · 物理学 2009-11-13 G. E. Murgida , D. A. Wisniacki , P. I. Tamborenea

We investigate the performance of dynamical decoupling methods at suppressing electron spin decoherence from a low-temperature nuclear spin reservoir in a quantum dot. The controlled dynamics is studied through exact numerical simulation,…

介观与纳米尺度物理 · 物理学 2009-11-13 Wenxian Zhang , V. V. Dobrovitski , Lea F. Santos , Lorenza Viola , B. N. Harmon

Coherent optical control schemes exploit the coherence of laser pulses to change the phases of interfering dynamical pathways in order to manipulate dynamical processes. These active control methods are closely related to dynamical…

其他凝聚态物理 · 物理学 2015-05-18 Luis G. C. Rego , L. F. Santos , V. S. Batista

The coherent control of scattering processes is considered, with electron impact dissociation of H$_2^+$ used as an example. The physical mechanism underlying coherently controlled stationary state scattering is exposed by analyzing a…

量子物理 · 物理学 2009-11-13 Michael Spanner , Paul Brumer

We show that coherent multiple light scattering, or diffuse light propagation, in a disordered atomic medium, prepared at ultra-low temperatures, can be be effectively delayed in the presence of a strong control field initiating a…

量子物理 · 物理学 2016-04-27 L. V. Gerasimov , I. M. Sokolov , D. V. Kupriyanov , R. G. Olave , M. D. Havey

We theoretically investigate the flow of the atomic excitations in a driven chiral-coupled atomic chain with nonreciprocal decay channels. This one-dimensional system allows infinite-range dipole-dipole interaction, and enables directional…

量子物理 · 物理学 2019-03-06 H. H. Jen

By studying the fluorescence and optical properties of a three-level system, we propose a new point of view on the coherent control of these spectra. With the definite phase difference between the fields of the air band and dielectric band…

材料科学 · 物理学 2009-11-13 Szu-Cheng Cheng , Jing-Nuo Wu , Tzong-Jer Yang , Wen-Feng Hsieh

Controlling multiple wave properties simultaneously poses a key challenge in coherent control of wave transport. We present a theory for joint coherent control of transmission, reflection, and absorption in linear systems. We prove that the…

光学 · 物理学 2025-11-10 Shiyu Li , Dongha Kim , Shanhui Fan , Cheng Guo

Experiments in coherent spectroscopy correspond to control of quantum mechanical ensembles guiding them from initial to final target states by unitary transformations. The control inputs (pulse sequences) that accomplish these unitary…

量子物理 · 物理学 2007-05-23 Navin Khaneja , Steffen Glaser

We experimentally demonstrate the coherent control, i.e., phase-dependent enhancement and suppression, of the optical absorption in an array of metallic nanoantennas covered by a thin lu- minescent layer. The coherent control is achieved by…

We introduce and validate a theoretical framework for coherent control of multichannel scattering of linear waves to route waves through complex geometries with multiple scattering. We show that steady-state perfect routing solutions are…

We describe a new method of coherent optical control of internal dynamics of atomic collisions by means of two correlated light beams having entangled polarizations. We show that if excitation of a colliding pair of atoms is by two photons…

量子物理 · 物理学 2015-06-23 M. D. Havey , D. V. Kupriyanov , I. M. Sokolov

Conical intersections (CI) between molecular potential energy surfaces with non-vanishing non-adiabatic couplings generally occur in any molecule consisting of at least three atoms. They play a fundamental role in describing the molecular…

Coherent control of collective spontaneous emission in an extended atomic ensemble resonantly interacting with single-photon wave packets is analyzed. A scheme for coherent manipulation of collective atomic states is developed such that…

量子物理 · 物理学 2009-11-13 Alexey Kalachev , Stefan Kroll

Control of the transfer of quantum information encoded in quantum wavepackets moving along a spin chain is demonstrated. Specifically, based on a relationship with control in a paradigm of quantum chaos, it is shown that wavepackets with…

量子物理 · 物理学 2007-07-18 Jiangbin Gong , Paul Brumer

In coherent control, electromagnetic vacuum fluctuations usually cause coherence loss through irreversible spontaneous emission. However, since the dissipation via emission is essentially due to correlation of the fluctuations, when…

介观与纳米尺度物理 · 物理学 2015-03-13 Jing Wang , Ren-Bao Liu , B. -F. Zhu , L. J. Sham , D. G. Steel

Motivated by a recent prediction to engineer the dispersion relation of a waveguide constructed from atomic components [arXiv:2104.08121], we explore the possibility to create directional transport in an open, collective quantum system. The…

量子物理 · 物理学 2022-04-05 R. Gutiérrez-Jáuregui , A. Asenjo-Garcia
‹ 上一页 1 2 3 10 下一页 ›