Article
Chemistry, Multidisciplinary
Michael Berger, Dominik Schulz, Jamal Berakdar
Summary: Quantum scars refer to enhanced localization of probability density of states in spectral regions with high energy levels. The study showed that spin-dependent scarring occurs in spin-coupled electronic systems, which can be detected through transport measurements or spin-polarized scanning tunneling spectroscopy.
Article
Optics
Long-Gang Huang, Xuanchen Zhang, Yanzhen Wang, Zhenxing Hua, Yuanjiang Tang, Yong-Chun Liu
Summary: Spin squeezing is crucial for quantum metrology and quantum information science, but its generation faces challenges due to the lack of squeezing interactions in existing physical systems. In this study, we propose a universal scheme to generate spin squeezing in coupled spin models with collective spin-spin interactions. We can transform the coupled spin interactions into squeezing interactions and achieve extreme squeezing with Heisenberg-limited measurement precision scaling as 1/N for N particles. Only constant and continuous driving fields are required, making it accessible for current realistic experiments. This work greatly expands the systems capable of generating Heisenberg-limited spin squeezing, with broad applications in quantum precision measurement.
Article
Materials Science, Multidisciplinary
Hiroshi Hayasaka
Summary: This study investigates the quantum correction effect on electrical conductivity in a two-dimensional Wolff Hamiltonian, which models the spin-orbit coupling lattice system. The nonadiabatic transition processes in impurity scattering suppress the weak antilocalization effect, with a strong dependence on the spin relaxation length in the SOC lattice system. The spin relaxation length in Bi thin film is discussed in detail.
Article
Optics
A. L. Subasi, M. Iskin
Summary: We employed the Bogoliubov approximation to investigate the influence of quantum geometry on the superfluid properties of spin-orbit-coupled Bose gas. The study derived the low-energy Bogoliubov spectrum for a plane-wave condensate in the lower helicity band and found that the geometric contributions to the sound velocity exhibit distinct linear dependencies on the interaction strength, in contrast to the conventional contribution. The research also examined the roton instability of the condensate and determined the phase-transition boundary, as well as derived the superfluid density tensor by introducing a phase twist on the condensate order parameter and studying the relative importance of its contribution from interband processes related to quantum geometry.
Article
Mathematics, Interdisciplinary Applications
Liangwei Zeng, Milivoj R. Belic, Dumitru Mihalache, Qing Wang, Junbo Chen, Jincheng Shi, Yi Cai, Xiaowei Lu, Jingzhen Li
Summary: This study demonstrates the existence of various types of solitons in spin-orbit-coupled systems with fractional dimensions based on Levy random flights, and finds that the Levy index, self-and cross-phase modulation strength, and propagation constant strongly affect the waveforms and stability of solitons; the research concludes that solitons tend to be stable when the Levy index is close to 2, while they tend to be unstable when the Levy index is close to 1.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Physics, Multidisciplinary
M. Bagheri Harouni
Summary: The study investigates the quantum speed limit and entanglement of a two-spin Heisenberg XYZ system in an inhomogeneous external magnetic field, finding that magnetic field inhomogeneity and spin-orbit coupling can affect the formation and evolution of entanglement.
Article
Optics
Lijun Yang
Summary: Our study demonstrates the importance of quantum fluctuations in understanding the superfluid properties of spin-orbit-coupled Bose-Einstein condensates.
Article
Multidisciplinary Sciences
Zhimei Wang, Lijun Mao, Naitao Xue, Wenting Lu
Summary: In this study, we theoretically investigate the transport properties of electrons in a quantum dot system with spin-orbit coupling. By using the quantum master equation approach, we calculate the shot noise and skewness of the transport electrons, and observe super-Poisson noise behavior with increasing spin polarization. Furthermore, we find that the shot noise is suppressed as the strength of spin-orbit coupling increases.
ROYAL SOCIETY OPEN SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Qingbo Wang, Wenjing Zhao, Linghua Wen
Summary: The study reveals that spin-orbit coupling has a significant influence on the dynamics of kicked pseudo-spin-1/2 Bose-Einstein condensates under different conditions, mainly reflected in the different behaviors of density distribution and energy evolution.
RESULTS IN PHYSICS
(2021)
Article
Physics, Multidisciplinary
Tsung-Wei Chen, Hsiu-Chuan Hsu
Summary: The study investigates the impact of spin precession on spin-Hall conductivity, finding both Larmor and non-Larmor spin components. The time-averaged non-Larmor SHC value is calculated for a k-cubic Rashba system, yielding a result close to experimental values.
NEW JOURNAL OF PHYSICS
(2021)
Article
Engineering, Mechanical
Kashif Ammar Yasir, Yu Chengyong, Gao Xianlong
Summary: In this study, we investigate the steady-state multi-stability of a cavity system containing spin-orbit coupled Bose-Einstein condensate. We show that the cavity photon number and atomic population exhibit multi-stable behavior, which can be tuned with system parameters. Additionally, we find the occurrence of population transitional phase for the atomic states, which can be controlled by spin-orbit coupling and Zeeman field effects.
NONLINEAR DYNAMICS
(2023)
Article
Physics, Condensed Matter
D. Munoz-Santana, Jesus A. Maytorena
Summary: The article investigates the linear and second harmonic spin current responses in two anisotropic systems with spin-orbit interaction. General expressions for these response functions are derived for a generic two-band Hamiltonian. The first system is a 2D electron gas with Rashba and k-linear Dresselhaus SO couplings, and the second system is an anisotropic 2D free electron gas with anisotropic Rashba interaction. The results highlight the possibility of nonlinear spin Hall effect and provide insights for manipulating spin currents in spintronic applications.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2023)
Article
Optics
Jing Li, E. Ya Sherman, Andreas Ruschhaupt
Summary: This paper explores the potential of a spin-orbit-coupled Bose-Einstein condensate in thermodynamic cycles by proposing a quantum heat engine using the condensate as a working medium. The cooling and heating processes are simulated through the contacts between the condensate and external magnetized and demagnetized media. The efficiency of the proposed engine is then studied, with the existence of a critical value of spin-orbit coupling that is related to the engine's maximum efficiency.
Article
Physics, Multidisciplinary
Fan Yang, Mads M. Lund, Thomas Pohl, Peter Lodahl, Klaus Molmer
Summary: Researchers have presented a method to classify quantum fields by using a pair of two-level emitters coupled to a waveguide, which can scatter the single and two-photon components of an input pulse into orthogonal temporal modes. The method achieves a high fidelity and can be used to construct logic elements.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Kevin T. Geier, Giovanni I. Martone, Philipp Hauke, Wolfgang Ketterle, Sandro Stringari
Summary: In this study, the nonrigidity and dynamic behavior of density stripes in a spin-orbit-coupled Bose-Einstein condensate with supersolidity are explored. Both analytical and numerical analysis demonstrate that spin waves induce crystal wave-like oscillations in the density profile, affecting the periodicity and orientation of the fringes. These findings highlight the paradigmatic nature of this system as a supersolid with a fully dynamic crystalline structure.
PHYSICAL REVIEW LETTERS
(2023)
Article
Optics
D. Oehri, M. Pletyukhov, V. Gritsev, G. Blatter, S. Schmidt
Article
Optics
Mikhail Pletyukhov, Vladimir Gritsev
Article
Physics, Multidisciplinary
Mikhail Pletyukhov, Vladimir Gritsev
NEW JOURNAL OF PHYSICS
(2012)
Article
Physics, Multidisciplinary
Matous Ringel, Mikhail Pletyukhov, Vladimir Gritsev
NEW JOURNAL OF PHYSICS
(2014)
Article
Optics
Michael Tomka, Omar El Araby, Mikhail Pletyukhov, Vladimir Gritsev
Article
Materials Science, Multidisciplinary
O. Kashuba, D. M. Kennes, M. Pletyukhov, V. Meden, H. Schoeller
Article
Materials Science, Multidisciplinary
Sarah Y. Mueller, Mikhail Pletyukhov, Dirk Schuricht, Sabine Andergassen
Article
Materials Science, Multidisciplinary
Frank Reininghaus, Mikhail Pletyukhov, Herbert Schoeller
Article
Physics, Multidisciplinary
Mikhail Pletyukhov, Herbert Schoeller
PHYSICAL REVIEW LETTERS
(2012)
Article
Physics, Multidisciplinary
D. M. Kennes, O. Kashuba, M. Pletyukhov, H. Schoeller, V. Meden
PHYSICAL REVIEW LETTERS
(2013)
Article
Physics, Multidisciplinary
Matti Laakso, Mikhail Pletyukhov
PHYSICAL REVIEW LETTERS
(2014)
Article
Optics
Kim G. L. Pedersen, Mikhail Pletyukhov
Article
Optics
Lingzhen Guo, Arne Grimsmo, Anton Frisk Kockum, Mikhail Pletyukhov, Goeran Johansson
Article
Optics
Mikhail Pletyukhov, Kim G. L. Pedersen, Vladimir Gritsev