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相关论文: Spatial behavior in a Mott insulator near the volt…

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We study the properties of a quarter-filled system of electrons on a square lattice interacting through a local repulsion $U$ and a nearest-neighbour repulsion $V$ in the limit $V=+\infty$. We identify the ground-state for $U$ large enough…

凝聚态物理 · 物理学 2009-10-22 Frederic Mila

We show, by using a correlated Jastrow wave function and a mapping onto a classical model, that the two-dimensional Mott transition in a simple half-filled one-band model can be unconventional and very similar to the binding-unbinding…

强关联电子 · 物理学 2009-11-11 Manuela Capello , Federico Becca , Seiji Yunoki , Sandro Sorella

Using the density matrix renormalization group method, we studied the ground state of the one-dimensional $S=1$ Bose-Hubbard model with local three-body interactions, which can be a superfluid or a Mott insulator state. We drew the phase…

量子气体 · 物理学 2019-03-19 A. F. Hincapie-F , R. Franco , J. Silva-Valencia

We investigate the magnetism in tilted fermionic Mott insulators. With a small tilt, the fermions are still localized and form a Mott-insulating state, where the localized spins interact via antiferromagnetic exchange coupling. While the…

量子气体 · 物理学 2025-11-26 Kazuaki Takasan , Masaki Tezuka

Motivated by the recent experimental developments in van der Waals heterostructures, we investigate the emergent magnetism in Mott insulator - semimetal moir\'e superlattices by deriving effective spin models and exploring their phase…

强关联电子 · 物理学 2024-11-05 M. A. Keskiner , Pouyan Ghaemi , M. Ö. Oktel , Onur Erten

We consider the effect of a local interatomic repulsion on synthetic heterostructures where a discrete synthetic dimension is created by Raman processes on top of $SU(N)$-symmetric two-dimensional lattice systems. At a filling of one…

量子气体 · 物理学 2023-03-28 Matteo Ferraretto , Andrea Richaud , Lorenzo Del Re , Leonardo Fallani , Massimo Capone

Metamagnetism in antiferromagnets exhibits distinct critical behaviors and dynamics when invoking spin reversal and rotation. Here we show a 0.05% anisotropic strain suffices to in-situ modulate the metamagnetic critical field of the Mott…

强关联电子 · 物理学 2020-07-24 H. Zhang , L. Hao , J. Yang , J. Mutch , Z. Liu , Q. Huang , K. Noordhoek , A. F. May , J. -H. Chu , J. W. Kim , P. J. Ryan , H. D. Zhou , Jian Liu

Using nonequilibrium dynamical mean-field theory, we compute the time evolution of the current in a Mott insulator after a strong electric field is turned on. We observe the formation of a quasistationary state in which the current is…

强关联电子 · 物理学 2013-05-29 Martin Eckstein , Takashi Oka , Philipp Werner

Motivated by the direct observation of electronic phase separation in first-order Mott transitions, we model the interface between the thermodynamically coexisting metal and Mott insulator. We show how to model the required slab geometry…

强关联电子 · 物理学 2017-05-24 Juho Lee , Chuck-Hou Yee

Quantum transitions between the Mott insulator and metals by controlling filling in two-dimensional square lattice are characterized by a large dynamical exponent $z=4$ where the origin of unusual metallic properties near the Mott insulator…

强关联电子 · 物理学 2007-05-23 Masatoshi Imada , Fakher F. Assaad , Hirokazu Tsunetsugu , Yukitoshi Motome

We discuss the recently discovered two-dimensional metal-insulator transition in zero magnetic field in the light of the scaling theory of localization. We demonstrate that the observed symmetry relating conductivity and resistivity follows…

无序系统与神经网络 · 物理学 2009-10-30 V. Dobrosavljevic , Elihu Abrahams , E. Miranda , Sudip Chakravarty

We numerically study the superfluid to Mott insulator transition for bosonic atoms in a one dimensional lattice by exploiting a recently developed simulation method for strongly correlated systems. We demonstrate this methods accuracy and…

软凝聚态物质 · 物理学 2009-11-10 S. R. Clark , D. Jaksch

We study the interplay of strong electron correlations and intra-triangle spin exchange at two-thirds filling of the single-orbital Hubbard model on the decorated honeycomb lattice using rotationally invariant slave bosons. We find that the…

强关联电子 · 物理学 2021-08-06 H. L. Nourse , Ross H. McKenzie , B. J. Powell

We elucidate the mechanism by which a Mott insulator transforms into a non-Fermi liquid metal upon increasing disorder at half filling. By correlating maps of the local density of states, the local magnetization and the local bond…

强关联电子 · 物理学 2020-04-08 Joseph C. Szabo , Kyungmin Lee , Vidya Madhavan , Nandini Trivedi

Among the complex many-body systems, the metal-insulator transition stands out as a cornerstone and a particularly fertile ground for scientific inquiry. The established models including Mott insulator, Anderson localization and Peierls…

We present a coordinated study of the paramagnetic-to-antiferromagnetic, rhombohedral-to-monoclinic, and metal-to-insulator transitions in thin-film specimens of the classic Mott insulator V$_2$O$_3$ using low-energy muon spin relaxation,…

We discuss the universal transport signatures near a zero-temperature continuous Mott transition between a Fermi liquid (FL) and a quantum spin liquid in two spatial dimensions. The correlation-driven transition occurs at fixed filling and…

强关联电子 · 物理学 2015-03-20 William Witczak-Krempa , Pouyan Ghaemi , T. Senthil , Yong Baek Kim

The quest for entangled spin excitations has stimulated intense research on frustrated magnetic systems. For almost two decades, the triangular-lattice Mott insulator $\kappa$-(BEDT-TTF)$_2$Cu$_2$(CN)$_3$ has been the hottest candidate for…

强关联电子 · 物理学 2023-06-06 A. Pustogow , Y. Kawasugi , H. Sakurakoji , N. Tajima

The hydrodynamics of a lattice Bose gas in a time-dependent external potential is studied in a mean-field approximation. The conditions under which a Mott insulating region can melt, and the local density adjust to the new potential, are…

量子气体 · 物理学 2011-09-12 Emil Lundh

V2O3 is the prototype system for the Mott transition, one of the most fundamental phenomena of electronic correlation. Temperature, doping or pressure induce a metal to insulator transition (MIT) between a paramagnetic metal (PM) and a…