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The stability of charged particle motion in a uniform magnetic field with an added spatially uniform transverse rotating magnetic field (RMF) is studied analytically. It is found that the stability diagram of a single-particle's orbit…

等离子体物理 · 物理学 2024-12-13 E. Palmerduca , H. Qin , S. A. Cohen

Molecular polaritons arise from electronic or vibrational strong coupling (ESC and VSC) with confined electromagnetic fields. While these have been widely studied, the influence of electron-nuclear dynamics in driven cavities remains…

Excitation of spin wave modes of a vortex-state magnetic dot by an out-of-plane oscillating magnetic field is studied numerically in the presence of a static in-plane magnetic field. It is shown, that the application of the in-plane static…

介观与纳米尺度物理 · 物理学 2016-04-26 Yan Liu , Yan Zhou , P. Dürrenfeld , Y. Yin , D. W. Wang , A. N. Slavin , A. Ruotolo

We revisit the vortex-gas scaling theory for heat transport by baroclinic turbulence based on the empirical observation that the vortex core radius departs from the Rossby deformation radius for very low bottom drag coefficient. We derive a…

流体动力学 · 物理学 2023-08-30 Gabriel Hadjerci , Basile Gallet

Clouds of cold neutral atoms driven by a coherent light beam in a ring cavity exhibit self-structured states transversely with respect to the beam axis due to optomechanical forces and the back action of the atomic structures on the beam.…

原子物理 · 物理学 2022-03-02 Giuseppe Baio , Thorsten Ackemann , Gian-Luca Oppo , Gordon R. M. Robb , Alison M. Yao

We study coherent nonlinear dynamics of carriers under ultrafast interband excitation of an intrinsic graphene. The Rabi oscillations of response appear with increasing of pumping intensity. The photoexcited distribution is calculated…

介观与纳米尺度物理 · 物理学 2015-05-19 P. N. Romanets , F. T. Vasko

Motivated by the experiments by Zrenner et al. [Nature 418, 612 (2002)], we study the influence of relaxation processes on converting Rabi oscillations in a strongly biased single-quantum-dot photodiode into deterministic photocurrents. We…

介观与纳米尺度物理 · 物理学 2010-01-26 Boris Fainberg , Abraham Nitzan

We analyze a possibility of macroscopic quantum effects in the form of coupled structural oscillations and shuttle motion of bright two-component spin-orbit-coupled striped (one-dimensional, 1D) and semi-vortex (two-dimensional, 2D)…

量子气体 · 物理学 2017-11-22 Hidetsugu Sakaguchi , Boris A. Malomed

We theoretically analyze the cooling dynamics of an atom which is tightly trapped inside a high-finesse optical resonator. Cooling is achieved by suitably tailored scattering processes, in which the atomic dipole transition either scatters…

量子物理 · 物理学 2012-11-08 Marc Bienert , Giovanna Morigi

We analyze a notable class of states relevant to an immiscible bosonic binary mixture loaded in a rotating box-like circular trap, i.e. states where vortices in one species host the atoms of the other species, which thus play the role of…

量子气体 · 物理学 2020-01-27 Andrea Richaud , Vittorio Penna , Ricardo Mayol , Montserrat Guilleumas

We present a detailed study on the behaviour of vortex cores in Bi_2Sr_2CaCu_2O_{8+\delta} using scanning tunneling spectroscopy. The very irregular distribution and shape of the vortex cores imply a strong pinning of the vortices by…

超导电性 · 物理学 2009-10-31 B. W. Hoogenboom , M. Kugler , B. Revaz , I. Maggio-Aprile , Ø. Fischer , Ch. Renner

In this work, a state-of-the-art vortex detection method, Instantaneous Vorticity Deviation, is applied to locate three-dimensional vortex tube boundaries in numerical simulations of solar photospheric magnetoconvection performed by the…

太阳与恒星天体物理 · 物理学 2020-08-03 Suzana S. A. Silva , Viktor Fedun , Gary Verth , Erico L. Rempel , Sergiy Shelyag

Plasmonic vortices (PV) excited by a highly focused radially polarized optical vortex (RPOV) beam on a metal surface are investigated experimentally and theoretically. The proposed method reveals a direct phase singularity and orbital…

光学 · 物理学 2011-10-11 X. -C. Yuan , Z. J. Hu , G. H. Yuan , Z. Shen

It is shown that coherent scatterings by an ordered vortex lattice are critically enhanced for quasi particles moving in cyclotron orbits on the Fermi surface through vortex core regions, thus generating significant quasi-periodic…

超导电性 · 物理学 2012-10-12 T. Maniv , V. Zhuravlev

We develop the theoretical formalism to calculate second-order correlations in dissipative exciton-polariton system and we propose intensity-intensity correlation experiments to reveal the physics of exciton-light coupling in semiconductor…

介观与纳米尺度物理 · 物理学 2016-04-01 Yuri G. Rubo , Alexandra Sheremet , Alexey Kavokin

We propose a physical mechanism which enables permanent Rabi oscillations in driven-dissipative condensates of exciton-polaritons in semiconductor microcavities subjected to external magnetic fields. The method is based on incoherent…

介观与纳米尺度物理 · 物理学 2018-07-10 I. Y. Chestnov , S. S. Demirchyan , S. M. Arakelian , A. P. Alodjants , Y. G. Rubo , A. V. Kavokin

This study conducts a comprehensive investigation into the reversal mechanism of magnetic vortex cores in a nanopillar system composed of two coupled ferromagnetic dots under zero magnetic field conditions. The research employs a…

We control the quantum mechanical motion of neutral atoms in an optical lattice by driving microwave transitions between spin states whose trapping potentials are spatially offset. Control of this offset with nanometer precision allows for…

We investigate a superconducting circuit consisting of multiple capacitively-coupled charge qubits. The collective Rabi oscillation of qubits is numerically studied in detail by imitating environmental fluctuations according to the…

量子物理 · 物理学 2018-09-06 Deshui Yu , Leong Chuan Kwek , Rainer Dumke

Toroidal vortices are whirling disturbances rotating about a ring-shaped core while advancing in the direction normal to the ring orifice. Toroidal vortices are commonly found in nature and being studied in a wide range of disciplines. Here…

光学 · 物理学 2022-06-06 Chenhao Wan , Qian Cao , Jian Chen , Andy Chong , Qiwen Zhan