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相关论文: Correlations in two-component log-gas systems

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The dual theory describing the 4D Coulomb gas of point-like magnetically charged objects, which confines closed electric strings, is considered. The respective generalization of the theory of confining strings to confining membranes is…

高能物理 - 理论 · 物理学 2010-02-03 Dmitri Antonov

The ordering of charges on half-filled hypercubic lattices is investigated numerically, where electroneutrality is ensured by background charges. This system is equivalent to the $s = 1/2$ Ising lattice model with antiferromagnetic $1/r$…

统计力学 · 物理学 2009-06-03 A. Mobius , U. K. Roessler

We found analytical solution for the time evolution of localized electron density in a system of two coupled single-level quantum dots (QDs) connected with continuous spectrum states in the presence of Coulomb interaction. This solution…

介观与纳米尺度物理 · 物理学 2013-12-30 P. I. Arseev , N. S. Maslova , V. N. Mantsevich

The effect of geometrical frustration in a two-dimensional 1/4-filled strongly correlated electron system is studied theoretically, motivated by layered organic molecular crystals. An extended Hubbard model on the square lattice is…

强关联电子 · 物理学 2007-05-23 Jaime Merino , Hitoshi Seo , Masao Ogata

Correlated charge inhomogeneity breaks the electron-hole symmetry in two-dimensional (2D) bilayer heterostructures which is responsible for non-zero drag appearing at the charge neutrality point. Here we report Coulomb drag in novel drag…

介观与纳米尺度物理 · 物理学 2020-04-22 Richa Mitra , Manas Ranjan Sahu , Kenji Watanabe , Takashi Taniguchi , Hadas Shtrikman , A. K Sood , Anindya Das

We study a quasi two dimensional dipolar gas at finite, but ultralow temperatures using the classical field approximation. The method, already used for a contact interacting gas, is extended here to samples with a weakly interacting…

量子气体 · 物理学 2013-04-23 Krzysztof Pawlowski , Przemyslaw Bienias , Tilman Pfau , Kazimierz Rzazewski

We investigate the behavior of heat conduction in two-dimensional (2D) electron gases without and with a magnetic field. We perform simulations with the Multi-Particle-Collision approach, suitably adapted to account for the Lorenz force…

介观与纳米尺度物理 · 物理学 2024-06-25 Rongxiang Luo , Qiyuan Zhang , Guanming Lin , Stefano Lepri

Time-dependent transport through two capacitively coupled quantum dots is studied in the framework of the generalized master equation. The Coulomb interaction is included within the exact diagonalization method. Each dot is connected to two…

介观与纳米尺度物理 · 物理学 2010-05-24 Valeriu Moldoveanu , Andrei Manolescu , Vidar Gudmundsson

We introduce and analyze $d$ dimensional Coulomb gases with random charge distribution and general external confining potential. We show that these gases satisfy a large deviations principle. The analysis of the minima of the rate function…

数学物理 · 物理学 2015-06-18 Luis Carlos Garcia del Molino , Khashayar Pakdaman , Jonathan Touboul

We investigate charge ordering in a quarter-filled ladder at finite temperature by determinantal Quantum Monte Carlo. The sign problem is moderate in a wide range of model parameters relevant for NaV2O5. The charge order parameter exhibits…

强关联电子 · 物理学 2007-05-23 C. Gabriel , E. Sherman , T. C. Lang , M. Aichhorn , H. G. Evertz

The capability of density-functional theory to deal with the ground-state of strongly correlated low-dimensional systems, such as semiconductor quantum dots, depends on the accuracy of functionals developed for the exchange and correlation…

强关联电子 · 物理学 2009-02-25 S. Pittalis , E. Rasanen , C. Proetto , E. K. U. Gross

Disordered granular systems, at temperatures where charging effects are important, are studied, by means of an effective medium approximation. The intragrain charging energy leads to insulating behavior at low temperatures, with a well…

介观与纳米尺度物理 · 物理学 2009-11-07 D. P. Arovas , F. Guinea , C. Herrero , P. San Jose

We consider how the absence of thermalisation affects the classical Coulomb blockade regime in quantum dots. By solving the quantum kinetic equation in the experimentally accessible regime when the dot has two relevant occupation states, we…

介观与纳米尺度物理 · 物理学 2024-05-22 George McArdle , Rose Davies , Igor V. Lerner , Igor V. Yurkevich

We determine exactly the short-distance effective potential between two "guest" charges immersed in a two-dimensional two-component charge-asymmetric plasma composed of positively ($q_1 = +1$) and negatively ($q_2 = -1/2$) charged point…

软凝聚态物质 · 物理学 2021-09-01 Lucas Varela , Gabriel Téllez

Two- and three-dimensional electron gases with a uniform neutralizing background are studied at negative compressibility. Parametrized expressions for the dielectric function are used to access this strong-coupling regime, where the…

凝聚态物理 · 物理学 2009-11-07 Adriaan M. J. Schakel

We analytically study the Out-of-Time-Order Correlation functions (OTOC) for two spatially separated primary operators in two-dimensional unitary minimal models. Besides giving general arguments using the conformal symmetry, we also use the…

高能物理 - 理论 · 物理学 2018-09-20 Ruihua Fan

We study a one-dimensional extended Hubbard model with longer-range Coulomb interactions at quarter-filling in the strong coupling limit. We find two different charge-ordered (CO) ground states as the strength of the longer range…

强关联电子 · 物理学 2007-08-17 Siddhartha Lal , Mukul S. Laad

We analyze the dynamics of the ion-dipole pairing reaction in the two-dimensional Coulomb gas in the presence of disorder. Sufficiently singular disorder forces the critical temperature of the Kosterlitz-Thouless-Berezinskii fixed point to…

统计力学 · 物理学 2009-10-31 Jeong-Man Park , Michael W. Deem

This is the second in a series of papers in which we derive a $\Gamma$-expansion for the two-dimensional non-local Ginzburg-Landau energy with Coulomb repulsion known as the Ohta-Kawasaki model in connection with diblock copolymer systems.…

偏微分方程分析 · 数学 2012-10-19 Dorian Goldman , Cyrill B. Muratov , Sylvia Serfaty

The second-order partial derivatives of the Coulomb potential of a point charge can be regularized using the Coulomb potential of a charge of the oblate spheroidal shape that a moving rest-frame-spherical charge acquires by the Lorentz…

经典物理 · 物理学 2007-05-23 V. Hnizdo
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