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We investigate multiple photon-assisted Landau-Zener (LZ) transitions in a hybrid circuit quantum electrodynamics device in which each of two interacting transmission-line resonators is coupled to a qubit, and the qubits are driven by…

量子物理 · 物理学 2021-01-25 Fulu Zheng , Yuejun Shen , Kewei Sun , Yang Zhao

A perturbative model is studied for the tunneling of many-particle states from the ground band to the first excited energy band, mimicking Landau-Zener decay for ultracold, spinless atoms in quasi-one dimensional optical lattices subjected…

其他凝聚态物理 · 物理学 2007-10-10 Andrea Tomadin , Riccardo Mannella , Sandro Wimberger

Effects of a periodic driving field on Landau-Zener processes are studied using a nonlinear two-mode model that describes the mean-field dynamics of a many-body system. A variety of different dynamical phenomena in different parameter…

其他凝聚态物理 · 物理学 2009-11-13 Qi Zhang , Peter Hanggi , Jiangbin Gong

The Landau-Zener model of a quantum mechanical two-level system driven with a linearly time dependent detuning has served over decades as a textbook paradigm of quantum dynamics. In their seminal work [L. D. Landau, Physik. Z. Sowjet. 2, 46…

量子气体 · 物理学 2011-01-13 Yu-Ao Chen , Sebastian D. Huber , Stefan Trotzky , Immanuel Bloch , Ehud Altman

We study a model for ultracold, spinless atoms in quasi-one dimensional optical lattices and subjected to a tunable tilting force. Statistical tests are employed to quantitatively characterize the spectrum of the Floquet-Bloch operator of…

强关联电子 · 物理学 2008-01-09 Andrea Tomadin , Riccardo Mannella , Sandro Wimberger

We investigate a Landau-Zener (LZ) transition process modeled by a quantum two-level system (TLS) coupled to a photon mode when the bias energy is varied linearly in time. The initial state of the photon field is assumed to be a…

量子物理 · 物理学 2015-06-04 Zhe Sun , Jian Ma , Xiaoguang Wang , Franco Nori

Employing the time-dependent variational principle combined with the multiple Davydov $\mathrm{D}_2$ Ansatz, we investigate Landau-Zener (LZ) transitions in a qubit coupled to a photon mode with various initial photon states at zero…

量子物理 · 物理学 2021-03-23 Lu Wang , Fulu Zheng , Jiaming Wang , Frank Großmann , Yang Zhao

The Landau--Zener (LZ) model describes a two-level quantum system that undergoes an avoided crossing. In the adiabatic limit, the transition probability vanishes. An auxiliary control field $H_\text{CD}$ can be reverse-engineered so that…

量子物理 · 物理学 2026-01-16 Georgios Theologou , Mikkel F. Andersen , Sandro Wimberger

Ultra-cold atoms in optical lattices provide an ideal platform for exploring many-body physics of a large system arising from the coupling among a series of small identical systems whose few-body dynamics is exactly solvable. Using…

量子气体 · 物理学 2013-02-06 Yinyin Qian , Ming Gong , Chuanwei Zhang

We consider the model of a single optical cavity mode interacting with two-level systems (spins) driven by a linearly time-dependent field. When this field passes through values at which spin energy level splittings become comparable to…

介观与纳米尺度物理 · 物理学 2016-07-06 Nikolai A. Sinitsyn , Fuxiang Li

We study an experimentally realizable paradigm of complex many-body quantum systems, a two-band Wannier-Stark model, for which diffusion in Hilbert space as well as many-body Landau-Zener processes can be engineered. A cross-over between…

量子气体 · 物理学 2013-10-23 Carlos A. Parra-Murillo , Javier Madroñero , Sandro Wimberger

Strong light fields have unlocked previously unthinkable possibilities to tailor coherent electron trajectories, engineer band structures and shape emergent phases of matter all-optically. Unravelling the underlying quantum mechanisms…

This paper reviews several applications of photonic side-bands, used by Buttiker and Landauer in their theory of traversal time in tunneling [Phys. Rev. Lett. 49, 1739 (1982)], in transport and optics of mesoscopic systems. Topics include…

介观与纳米尺度物理 · 物理学 2009-10-30 A. P. Jauho

Employing the multiple Davydov D$_2$ Ansatz with the time-dependent variational principle, we have investigated photon-assisted Landau-Zener (LZ) transitions and qubit manipulation in a hybrid quantum electrodynamics device. Modelled as a…

量子物理 · 物理学 2023-09-29 Daniel Melvin , Fulu Zheng , Kewei Sun , Zhengjie Tan , Yang Zhao

The Landau-Zener (LZ) transition is one of the most fundamental phenomena in quantum dynamics. It describes nonadiabatic transitions between quantum states near an avoided crossing that can occur in diverse physical systems. Here we report…

Second-order processes introduce nonlinearities in quantum dynamics, unlocking a totally unexpected area of control operations. Here we show that the well-known Landau-Zener-St\"uckelberg-Majorana (LZSM) transition can be driven by a…

量子物理 · 物理学 2024-02-19 Isak Björkman , Marko Kuzmanović , Gheorghe Sorin Paraoanu

A transition between energy levels at an avoided crossing is known as a Landau-Zener transition. When a two-level system (TLS) is subject to periodic driving with sufficiently large amplitude, a sequence of transitions occurs. The phase…

超导电性 · 物理学 2012-02-29 S. N. Shevchenko , S. Ashhab , Franco Nori

We formulate and approximately solve a specific many-body generalization of the Landau-Zener problem. Unlike with the single particle Landau-Zener problem, our system does not abide in the adiabatic ground state, even at very slow driving…

介观与纳米尺度物理 · 物理学 2008-04-21 Alexander Altland , V. Gurarie

We study stationary and dynamical properties of the many-body Landau-Zener dynamics of a Bose quantum fluid confined in two coupled one-dimensional chains, using a many-body generalization recently reported [Y.-A. Chen et al.], within the…

量子气体 · 物理学 2012-07-10 Santiago F. Caballero-Benitez , Rosario Paredes

We study Landau-Zener-Stuckelberg (LZS) interferometry in multilevel systems coupled to an Ohmic quantum bath. We consider the case of superconducting flux qubits driven by a dc+ac magnetic fields, but our results can apply to other similar…

超导电性 · 物理学 2016-03-09 Alejandro Ferron , Daniel Dominguez , Maria Jose Sanchez
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