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Using large-scale determinant quantum Monte Carlo simulations in combination with the stochastic analytical continuation, we study two-particle dynamical correlation functions in the anisotropic square lattice of weakly coupled…

强关联电子 · 物理学 2013-08-22 Marcin Raczkowski , Fakher F. Assaad

We investigate the role of four-spin interactions in stabilizing exotic multiple-$Q$ topological spin textures and demonstrate their ability to realize a skyrmion crystal. While such higher-order interactions are known to be important,…

强关联电子 · 物理学 2026-03-17 Kazuki Okigami , Satoru Hayami

Using a combined analytical and numerical approach, we study the collective spin and orbital excitations in a spin-orbital chain under a crystal field. Irrespective of the crystal field strength, these excitations can be universally…

强关联电子 · 物理学 2015-04-03 Cheng-Chien Chen , Michel van Veenendaal , Thomas P. Devereaux , Krzysztof Wohlfeld

The proton is a composite object with spin one-half, understood to contain highly relativistic spin one-half quarks exchanging spin-one gluons, each possibly with significant orbital angular momenta. While their fundamental interactions are…

高能物理 - 唯象学 · 物理学 2009-09-01 M. Burkardt , C. A. Miller , W. -D. Nowak

Patterns in complex systems store hidden information of the system which is needed to be explored. We present a simple model of cytokine and T-cells interaction and studied the model within stochastic framework by constructing Master…

种群与进化 · 定量生物学 2022-09-23 Moirangthem Shubhakanta Singh , Mairembam Kelvin Singh , R. K. Brojen Singh

We consider recurrence versus transience for models of random walks on domains of $\mathbb{Z}^d$, in which monotone interaction enforces domain growth as a result of visits by the walk (or probes it sent), to the neighborhood of domain…

概率论 · 数学 2014-06-17 Amir Dembo , Ruojun Huang , Vladas Sidoravicius

The mechanism of spin-phonon coupling in high-T$_C$ copper oxides is explored from band calculations on La$_{(2-x)}$Sr$_x$CuO$_4$ and HgBa$_2$CuO$_4$ systems. The LMTO band calculations, based on the local density approximation, are made…

材料科学 · 物理学 2015-06-25 T. Jarlborg

Metastable condensed matter typically fluctuates about local energy minima at the femtosecond time scale before transitioning between local minima after nanoseconds or microseconds. This vast scale separation limits the applicability of…

计算物理 · 物理学 2017-11-22 Brittan A Farmer , Mitchell Luskin , Petr Plecháč , Gideon Simpson

The chain-polymer Cu(II) breathing crystals C21H19CuF12N4O6 were studied using the x-ray diffraction and ab initio band structure calculations. We show that the crystal structure modification at T=146 K, associated with the spin crossover…

强关联电子 · 物理学 2013-02-04 S. V. Streltsov , M. V. Petrova , V. A. Morozov , G. V. Romanenko , V. I. Anisimov , N. N. Lukzen

We consider a one-dimensional system comprising of $N$ run-and-tumble particles confined in a harmonic trap interacting via a repulsive inverse-square power-law interaction. We numerically compute the global density profile in the steady…

Molecular electronic devices currently serve as a platform for studying a variety of physical phenomena only accessible at the nanometer scale. One such phenomenon is the highly correlated electronic state responsible for the Kondo effect,…

介观与纳米尺度物理 · 物理学 2015-03-13 Gavin D. Scott , Douglas Natelson

The duality between partonic and hadronic descriptions of physical phenomena is one of the most remarkable features of strong interaction physics. A classic example of this is in electron-nucleon scattering, in which low-energy cross…

高能物理 - 唯象学 · 物理学 2014-11-18 W. Melnitchouk , R. Ent , C. Keppel

The strong interaction effects of isospin- and spin-dependent nucleon-nucleon correlations observed in many-body calculations are interpreted in terms of a one-pion exchange mechanism. Including such effects in computations of nuclear…

核理论 · 物理学 2009-11-10 Gerald A. Miller

This work is an analytic theoretical study of a 2D semiconductor with a Fermi surface that is split by the Zeeman coupling of electron spins to an external magnetic field in the presence of electron-electron interactions. For the first…

强关联电子 · 物理学 2024-03-07 Joel Hutchinson , Dmitry Miserev , Jelena Klinovaja , Daniel Loss

Dynamics of hadro-quarkonium system is formulated, based on the channel coupling of a light hadron (h) and heavy quarkonium (Q\bar{Q}) to intermediate open-flavor heavy-light mesons (Q\bar{q}, \bar{Q}q). The resulting effective interaction…

高能物理 - 唯象学 · 物理学 2014-01-21 I. V. Danilkin , V. D. Orlovsky , Yu. A. Simonov

Driven many-body systems have been shown to exhibit discrete time crystal phases characterized by broken discrete time-translational symmetry. This has been achieved generally through a subharmonic response, in which the system undergoes…

斑图形成与孤子 · 物理学 2021-05-13 Zachary G. Nicolaou , Adilson E. Motter

The complex Kohn variational principle and the (correlated) hyperspherical harmonics method are applied to study the proton-deuteron elastic scattering at energies above the deuteron breakup threshold. Results for the elastic cross section…

核理论 · 物理学 2009-10-31 A. Kievsky , S. Rosati , M. Viviani

A statistical physics model for the time evolutions of stock portfolios is proposed. In this model the time series of price changes are coded into the sequences of up and down spins. The Hamiltonian of the system is introduced and is…

统计力学 · 物理学 2008-12-02 Jun-ichi Maskawa

Consider the following interacting particle system on the $d$-ary tree, known as the frog model: Initially, one particle is awake at the root and i.i.d. Poisson many particles are sleeping at every other vertex. Particles that are awake…

概率论 · 数学 2016-06-23 Christopher Hoffman , Tobias Johnson , Matthew Junge

Triadic interactions are higher-order interactions that occur when a set of nodes affects the interaction between two other nodes. Examples of triadic interactions are present in the brain when glia modulate the synaptic signals among…

适应与自组织系统 · 物理学 2024-10-08 Ana P. Millán , Hanlin Sun , Joaquìn J. Torres , Ginestra Bianconi