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相关论文: Ferromagnetism in a two-component Bose-Hubbard mod…

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Recently proposed local-correlation-driven pairing mechanism, describing ferromagnetic phases (FM1 and FM2) coexisting with spin-triplet superconductivity (SC) within a single orbitally degenerate Anderson lattice model, is extended to the…

强关联电子 · 物理学 2019-05-15 M. Fidrysiak , D. Goc-Jagło , E. Kądzielawa-Major , P. Kubiczek , J. Spałek

We investigate the behavior of magnetic impurities placed on the surface of superconductor thin films with spin-orbit coupling. Our study reveals long-range interactions between the impurities, which decay according to a power law, mediated…

超导电性 · 物理学 2023-07-26 Yao Lu , I. V. Tokatly , F. Sebastian Bergeret

We discuss phenomena arising from the combined influence of electron correlation and spin-orbit coupling, with an emphasis on emergent quantum phases and transitions in heavy transition metal compounds with 4d and 5d elements. A common…

强关联电子 · 物理学 2014-03-14 William Witczak-Krempa , Gang Chen , Yong Baek Kim , Leon Balents

We analyze the symmetry and the nodal structure of the superconducting order parameter in a cubic ferromagnet, such as ZrZn$_2$. We demonstrate how the order parameter symmetry evolves when the electromagnetic interaction of the conduction…

超导电性 · 物理学 2009-11-07 K. V. Samokhin , M. B. Walker

Density order is usually a consequence of the competition between long-range and short-range interactions. Here we report a density ordered superfluid emergent from a homogeneous Mott insulator due to the competition between frustrations…

量子气体 · 物理学 2021-12-22 Ce Wang , Yu Chen

We show that double-quantum spin vortices, which are characterized by doubly quantized circulating spin currents and unmagnetized filled cores, can exist in the ground states of SU(3) spin-orbit coupled Bose gases. It is found that the…

量子气体 · 物理学 2016-09-27 Wei Han , Xiao-Fei Zhang , Shu-Wei Song , Hiroki Saito , Wei Zhang , Wu-Ming Liu , Shou-Gang Zhang

We consider the effect of spin-orbit coupling on a two-dimensional Kondo Lattice model, in which conduction electrons are antiferromagnetically coupled to a Yao-Lee spin liquid. When a Rashba spin-orbit interaction and a nearest-neighbor…

强关联电子 · 物理学 2025-01-07 Zekun Zhuang , Piers Coleman

We investigate theoretically the dynamics of a spin-orbit coupled soliton formed by a self- interacting Bose-Einstein condensate immersed in a random potential, in the presence of an artificial magnetic field. We find that due to the…

量子气体 · 物理学 2018-08-17 Sh. Mardonov , V. V. Konotop , B. A. Malomed , M. Modugno , E. Ya. Sherman

Dynamical correlations of Jeff = 1/2 isospins in the paramagnetic state of spin-orbital Mott insu- lator Sr2IrO4 was revealed by resonant magnetic x-ray diffuse scattering. We found two-dimensional antiferromagnetic fluctuation with a large…

强关联电子 · 物理学 2015-06-04 S. Fujiyama , H. Ohsumi , T. Komesu , J. Matsuno , B. J. Kim , M. Takata , T. Arima , H. Takagi

We study spin mixing dynamics in a chromium dipolar Bose-Einstein Condensate, after tilting the atomic spins by an angle $\theta$ with respect to the magnetic field. Spin mixing is triggered by dipolar coupling, but, once dynamics has…

量子气体 · 物理学 2018-02-14 S. Lepoutre , K. Kechadi , B. Naylor , B. Zhu , L. Gabardos , L. Isaev , P. Pedri , A. M. Rey , L. Vernac , B. Laburthe-Tolra

Many-body interactions between carriers lie at the heart of correlated physics. The ability to tune such interactions would open the possibility to access and control complex electronic phase diagrams on demand. Recently, moir\'e…

We unravel the dynamical stability of a fully polarized one-dimensional ultracold few-fermion spin-1/2 gas subjected to inhomogeneous driving of the itinerant spins. Despite the unstable character of the total spin-polarization the…

量子气体 · 物理学 2019-05-09 G. M. Koutentakis , S. I. Mistakidis , P. Schmelcher

Spin-orbit-coupled Bose-Einstein condensates (SOBECs) exhibit two new phases of matter, now known as the stripe and plane-wave phases. When two interacting spin components of a SOBEC spatially overlap, density modulations with periodicity…

量子气体 · 物理学 2020-02-12 Andika Putra , F. Salces-Cárcoba , Yuchen Yue , Seiji Sugawa , I. B. Spielman

We investigate the Mott transitions in two-orbital Hubbard systems. Applying the dynamical mean field theory and the self-energy functional approach, we discuss the stability of itinerant quasi-particle states in each band. It is shown that…

强关联电子 · 物理学 2009-11-11 A. Koga , K. Inaba , N. Kawakami

The total spin of the ground state is calculated in the U -> infinity Hubbard model with uniform magnetic flux perpendicular to a square lattice, in the absence of Zeeman coupling. It is found that the saturated ferromagnetism emerges in a…

强关联电子 · 物理学 2007-05-23 Yasuhiro Saiga , Masaki Oshikawa

Chirality represents a kind of symmetry breaking characterized by the noncoincidence of an object with its mirror image and has been attracting intense attention in a broad range of scientific areas. The recent realization of spin-orbit…

量子气体 · 物理学 2018-07-27 Wei Han , Xiao-Fei Zhang , Deng-Shan Wang , Hai-Feng Jiang , Wei Zhang , Shou-Gang Zhang

We study the collective oscillations of spin-orbit-coupled Bose-Einstein condensates in the presence of position-dependent detuning. Specifically, we explore the quadrupole modes of the system using both numerical and analytical approaches…

量子气体 · 物理学 2025-06-12 Huaxin He , Fengtao Pang , Yongping Zhang , Chunlei Qu

Finite-momentum pairing in a Pauli-limited spin-singlet superconductor arises from the pair-breaking effects of an external Zeeman field, a mechanism which is not applicable in odd-parity spin-triplet superconductors. However, in…

超导电性 · 物理学 2024-07-17 Jonathan Clepkens , Hae-Young Kee

In one-dimensional systems a twisted superfluid phase is found which is induced by a spontaneous breaking of the time-reversal symmetry. Using the density-matrix renormalization group allows us to show that the excitation energy gap closes…

量子气体 · 物理学 2016-07-22 Dirk-Sören Lühmann

We use the density matrix renormalization group method(DMRG) and the infinite time evolved block decimation method(iTEBD) to investigate the ground states of the spin-orbit coupled Fermi gas in a one dimensional optical lattice with a…

量子气体 · 物理学 2014-11-25 Y. H. Chan