中文
相关论文

相关论文: Phase dependence of localization in the driven two…

200 篇论文

A detailed study of the effects of phase fluctuation and dephasing on the dynamics of the entanglement generated from a coherently pumped correlated emission laser is presented. It is found that the time evolution of the entanglement is…

量子物理 · 物理学 2015-05-27 Sintayehu tesfa

We study a one-dimensional totally asymmetric exclusion process with random particle attachments and detachments in the bulk. The resulting dynamics leads to unexpected stationary regimes for large but finite systems. Such regimes are…

统计力学 · 物理学 2007-05-23 A. Parmeggiani , T. Franosch , E. Frey

We study the time-dependent dynamics of a Bose-Einstein condensate trapped in an optical lattice. Modeling the system as a Bose-Hubbard model, we show how applying a periodic driving field can induce coherent destruction of tunneling. In…

其他凝聚态物理 · 物理学 2009-11-11 C. E. Creffield , T. S. Monteiro

We study a periodically driven central site coupled to a disordered environment. In comparison to the static model, transport features are either enhanced or reduced, depending on the frequency of the drive. We demonstrate this by analyzing…

无序系统与神经网络 · 物理学 2019-07-17 Daniel Hetterich , Gabriel Schmitt , Lorenzo Privitera , Björn Trauzettel

The effect of feedback on a two-level dissipative system is studied in this paper. The results show that it is possible to control the phase in the open system even if its state can not be manipulated from an arbitrary initial one to an…

量子物理 · 物理学 2009-11-13 H. Y. Sun , P. L. Shu , C. Li , X. X. Yi

The coherence times achieved with continuous dynamical decoupling techniques are often limited by fluctuations in the driving amplitude. In this work, we use time-dependent phase-modulated continuous driving to increase the robustness…

量子物理 · 物理学 2017-08-22 D. Farfurnik , N. Aharon , I. Cohen , Y. Hovav , A. Retzker , N. Bar-Gill

The anomalous response of glasses in the echo amplitude experiment is explained in the presence of a magnetic field. We have considered the low energy excitations in terms of an effective two level system. The effective model is constructed…

无序系统与神经网络 · 物理学 2008-03-31 A. Akbari , A. Langari

Tunneling two level systems affect damping, noise and decoherence in a wide range of devices, including nanoelectromechanical resonators, optomechanical systems, and qubits. Theoretically this interaction is usually described within the…

介观与纳米尺度物理 · 物理学 2022-01-19 T. Kamppinen , J. T. Mäkinen , V. B. Eltsov

We study the dynamics of a localized spin-1/2 driven by a time-periodic magnetic field that undergoes a topological transition. Despite the strongly non-adiabatic effects dominating the spin dynamics, we find that the field's topology…

介观与纳米尺度物理 · 物理学 2017-06-08 A. A. Reynoso , J. P. Baltanás , H. Saarikoski , J. E. Vázquez-Lozano , J. Nitta , D. Frustaglia

The efficiency of traffic flows in urban areas is known to crucially depend on signal operation. Here, elements of signal control are discussed, based on the minimization of overall travel times or vehicle queues. Interestingly, we find…

物理与社会 · 物理学 2015-05-13 Dirk Helbing , Amin Mazloumian

We demonstrate that a site-dependent driving of a periodic potential allows for the controlled manipulation of a quantum particle on length scales of the lattice spacing. Specifically we observe for distinct driving frequencies a near…

量子物理 · 物理学 2015-05-20 Thomas Wulf , Benno Liebchen , Peter Schmelcher

Beyond the quantum Markov approximation, we calculate the geometric phase of a two-level system driven by a quantized magnetic field subject to phase dephasing. The phase reduces to the standard geometric phase in the weak coupling limit…

量子物理 · 物理学 2009-11-11 X. X. Yi , L. C. Wang , W. Wang

We investigate the phase structure and conductivity of a relativistic fluid in a circulating electric field with a transverse magnetic field. This system exhibits behavior similar to other driven systems such as strongly coupled driven CFTs…

高能物理 - 理论 · 物理学 2018-10-17 Andrew Baumgartner , Michael Spillane

Engineering dissipative dynamics in open quantum systems is under active focus, especially in topological settings where resilient edge modes are expected to exhibit decay rates distinct from the bulk. In this letter, we propose an…

介观与纳米尺度物理 · 物理学 2025-12-01 Koustav Roy , Shahroze Shahab , Saurabh Basu

We investigate the problem of two-level atoms driven by an ultrashort pulse train in the frequency domain. At low intensity regime, we obtain a perturbative analytical solution that allows us to discuss the role of the mode number of the…

原子物理 · 物理学 2013-06-18 Marco P. Moreno , Sandra S. Vianna

The interference between repeated Landau-Zener transitions in a qubit swept through an avoided level crossing results in Stueckelberg oscillations in qubit magnetization. The resulting oscillatory patterns are a hallmark of the coherent…

介观与纳米尺度物理 · 物理学 2008-11-07 M. S. Rudner , A. V. Shytov , L. S. Levitov , D. M. Berns , W. D. Oliver , S. O. Valenzuela , T. P. Orlando

We consider joint effects of tunneling and spin-orbit coupling on driven by electric field spin dynamics in a double quantum dot with a multi-level resonance scenario. We demonstrate that tunneling plays the crucial role in the formation of…

介观与纳米尺度物理 · 物理学 2012-03-26 D. V. Khomitsky , L. V. Gulyaev , E. Ya. Sherman

The evolution of the quantum wave packet describing an atom trapped in the surface-tip junction of the scanning tunneling microscope is investigated by using the time-dependent Schroedinger equation, and by a quasi-classical Hamiltonian…

量子物理 · 物理学 2008-02-21 M. Grigorescu

Passive scalar transport in a spatially-extended background of roll convection is considered in the time-periodic regime. The latter arises due to the even oscillatory instability of the cell lateral boundary, here accounted for by…

chao-dyn · 物理学 2009-10-31 P. Castiglione , R. Festa , A. Mazzino

We demonstrate that at long times the rate of passive scalar decay in a turbulent, or simply chaotic, flow is dominated by regions (in real space or in inverse space) where mixing is less efficient. We examine two situations. The first is…

混沌动力学 · 物理学 2009-11-07 M. Chertkov , V. Lebedev