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We study the properties of generalized striped phases of doped cuprate planar quantum antiferromagnets. We invoke an effective, spatially anisotropic, non-linear sigma model in two space dimensions. Our theoretical predictions are in…

凝聚态物理 · 物理学 2016-08-31 Daniel Hone , A. H. Castro Neto

We investigate the kinetics of normal phase nucleation and flux line condensation in the type-II superconductors by numerical study of the time-dependent Ginzburg-Landau equation. We have shown that under the sufficient transport current…

supr-con · 物理学 2009-10-28 I. Aranson , B. Ya. Shapiro , V. Vinokur

The interplay of spin and motional degrees of freedom forms a key element in explaining stripe formation accompanied by sublattice reversal of local antiferromagnetic ordering in interacting fermionic models. A long-standing question aims…

强关联电子 · 物理学 2024-02-28 Jianhao Sun , Tao Ying , Richard T. Scalettar , Rubem Mondaini

We study a driven-dissipative model of spins one-half (qubits) on a lattice with nearest-neighbor interactions. Focusing on the role of spatially extended spin-spin correlations in determining the phases of the system, we characterize the…

量子物理 · 物理学 2020-08-12 Haggai Landa , Marco Schiró , Grégoire Misguich

We propose that novel superfluid with supersolid-like properties - angular stripe phase - can be realized in a pancake-like spin-1/2 Bose gas with spin-orbital-angular-momentum coupling. We predict a rich ground-state phase diagram,…

量子气体 · 物理学 2024-08-26 Xiao-Long Chen , Shi-Guo Peng , Peng Zou , Xia-Ji Liu , Hui Hu

We consider a two-dimensional disordered conductor in the regime when the superconducting phase is destroyed by the magnetic field. We analyze a combination of fluctuations of different origin which results in an effective interaction…

强关联电子 · 物理学 2022-09-28 Vladimir A. Zyuzin , Alexander M. Finkel'stein

By modeling the stripe phase in cuprates as spin gapped stripes coupled to the RVB liquid of preformed electron pairs, I derive the low energy effective theory of the RVB phase variable. It is found that the effect of stripe dynamics…

超导电性 · 物理学 2009-10-31 W. J. Zheng

We show how mapping techniques inherent to $N^{2}$-dimensional discrete phase spaces can be used to treat a wide family of spin systems which exhibits squeezing and entanglement effects. This algebraic framework is then applied to the…

量子物理 · 物理学 2013-07-16 Marcelo A. Marchiolli , Diógenes Galetti , Tiago Debarba

We developed functional integral formulation for the stripe phase of a spinor Bose-Einstein condensates with Rashba spin-orbit coupling. The excitation spectrum is found to exhibit double gapless band structures, identified to be two…

量子气体 · 物理学 2018-04-05 Renyuan Liao

According to the mean-field theory a condensed Bose-Bose mixture collapses when the interspecies attraction becomes stronger than the geometrical average of the intraspecies repulsions, $g_{12}^2>g_{11} g_{22}$. We show that instead of…

量子气体 · 物理学 2015-10-13 D. S. Petrov

We study dissipative phase transition near the critical point for a system with two-photon driving and nonlinear dissipation. The proposed mean-field theory, which explicitly takes into account quantum fluctuations, allowed us to describe…

量子物理 · 物理学 2022-08-02 V. Yu. Mylnikov , S. O. Potashin , G. S. Sokolovskii , N. S. Averkiev

In this letter we study finite temperature properties of spin-1/2 interacting bosons with spin-orbit coupling in two dimensions. When the ground state has stripe order, we show that thermal fluctuations will first melt the stripe order and…

量子气体 · 物理学 2011-08-30 Chao-Ming Jian , Hui Zhai

The dualism between superconductivity and charge/spin modulations (the so-called stripes) dominates the phase diagram of many strongly-correlated systems. A prominent example is given by the Hubbard model, where these phases compete and…

强关联电子 · 物理学 2019-08-14 Luca F. Tocchio , Arianna Montorsi , Federico Becca

We revisit the effective theory for fluctuating spin stripes coupled to a Fermi surface, and consider the parameter regime where a spin nematic phase intervenes between the spin density wave state and the symmetric state. It is shown that…

强关联电子 · 物理学 2026-05-15 Xu Zhang , Nick Bultinck

Facilitated spin models on random graphs provide an ideal microscopic realization of the mode-coupling theory of supercooled liquids: they undergo a purely dynamic glass transition with no thermodynamic singularity. In this paper we study…

统计力学 · 物理学 2015-06-11 Silvio Franz , Mauro Sellitto

We show that short-range correlations have a dramatic impact on the steady-state phase diagram of quantum driven-dissipative systems. This effect, never observed in equilibrium, follows from the fact that ordering in the steady state is of…

We study theoretically and experimentally the behaviour of a strongly confined dipolar Bose-Einstein condensate, in the regime of quantum-mechanical stabilization by beyond-mean-field effects. Theoretically, we demonstrate that…

量子气体 · 物理学 2017-12-06 Matthias Wenzel , Fabian Böttcher , Tim Langen , Igor Ferrier-Barbut , Tilman Pfau

We consider two different collective spin systems subjected to strong dissipation -- on the same scale as interaction strengths and external fields -- and show that either continuous or discontinuous dissipative quantum phase transitions…

量子物理 · 物理学 2008-09-23 S. Morrison , A. S. Parkins

We investigate the dissipative phase transitions of the anisotropic quantum Rabi model with cavity decay and demonstrate that large spin fluctuations persist in the stationary state, having important consequences on the phase diagram and…

量子物理 · 物理学 2023-12-12 Jiahui Li , Rosario Fazio , Yingdan Wang , Stefano Chesi

Based on the mean-field method applied either to the extended single-band Hubbard model or to the single-band Peierls-Hubbard Hamiltonian we study the stability of both site-centered and bond-centered charge domain walls. The difference in…

强关联电子 · 物理学 2007-05-23 Marcin Raczkowski , Andrzej M. Oles , Raymond Fresard