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We consider dynamics of classical dimer models undergoing a phase transition to an ordered, frozen state. Relaxation processes are dominated by traps which are entropic in origin and can be traced to the locally jammed nature of the dimer…

统计力学 · 物理学 2007-05-23 Dibyendu Das , Jané Kondev , Bulbul Chakraborty

A Wigner crystal formed with trapped ion can undergo structural phase transition, which is determined only by the mechanical conditions on a classical level. Instead of this classical result, we show that through consideration of quantum…

强关联电子 · 物理学 2011-02-09 Zhe-Xuan Gong , G. -D. Lin , L. -M. Duan

Compared to isotropic liquids, orientational order of nematic liquid crystals makes their rheological properties more involved, and thus requires fine control of the flow parameters to govern the orientational patterns. In microfluidic…

软凝聚态物质 · 物理学 2020-01-03 Simon Čopar , Žiga Kos , Tadej Emeršič , Uroš Tkalec

Neuronal cells present periodic trains of localized voltage spikes involving a large amount of different ionic channels. A relevant question is whether this is a cooperative effect or it could also be an intrinsic property of individual…

生物物理 · 物理学 2018-04-17 Laureano Ramírez-Piscina , José M. Sancho

We study switching between period-two states of an underdamped quantum oscillator modulated at nearly twice its natural frequency. For all temperatures and parameter values switching occurs via quantum activation: it is determined by…

统计力学 · 物理学 2009-11-11 M. Marthaler , M. I. Dykman

A new Self-Organized Criticality (SOC) model is introduced in the form of a Cellular Automaton (CA) for ion temperature gradient (ITG) mode driven turbulence in fusion plasmas. Main characteristics of the model are that it is constructed in…

等离子体物理 · 物理学 2015-05-19 Heinz Isliker , Theophilos Pisokas , Dafni Strintzi , Loukas Vlahos

The vibronic dynamics of a trapped ion in the resolved-sideband regime can be described by the explicitly time-dependent nonlinear Jaynes-Cummings model. It is shown that the expectation value of the interaction Hamiltonian and its…

量子物理 · 物理学 2019-06-13 F. Krumm , W. Vogel

We perform an analytical investigation in the framework of generalized $K$ matrix theory of the scattering problem in tight isotropic and harmonic waveguides allowing for several open scattering channels. The scattering behavior is explored…

量子气体 · 物理学 2015-08-26 Benjamin Heß , Panagiotis Giannakeas , Peter Schmelcher

Guiding of highly charged ions (HCI) through tilted capillaries promises to develop into a tool to efficiently collimate and focus low-energy ion beams to sub-micrometer size. One control parameter to optimize guiding is the residual…

其他凝聚态物理 · 物理学 2011-09-20 G. Kowarik , R. J. Bereczky , F. Ladinig , D. Schrempf , C. Lemell , J. Burgdörfer , K. Tőkési , F. Aumayr

We present a theoretical investigation of the electronic structure of rutile (metallic) and M$_1$ and M$_2$ monoclinic (insulating) phases of VO$_2$ employing a fully self-consistent combination of density functional theory and embedded…

强关联电子 · 物理学 2016-08-03 W. H. Brito , M. C. O. Aguiar , K. Haule , G. Kotliar

The low--energy excited states of a system of interacting one--dimensional fermions in a conducting state are collective charge and spin density oscillations. The unusual physical properties of such a system (called ``Luttinger liquid'')…

凝聚态物理 · 物理学 2007-05-23 H. J. Schulz

We present a theoretical study of the impact of oxygen diffusion in oxide crystals on metal dopants ionic state and the conduction type under dynamic changes. The slow changes under thermal equilibrium are provided in a companion, Part I…

材料科学 · 物理学 2018-06-06 Misha Sinder , Zeev Burshtein , Joshua Pelleg

Time crystals are many-body systems whose ground state spontaneously breaks time-translation symmetry and thus exhibits long-range spatiotemporal order and robust periodic motion. Using hydrodynamics, we have recently shown how an…

统计力学 · 物理学 2025-12-15 R. Hurtado-Gutiérrez , C. Pérez-Espigares , P. I. Hurtado

Using novel micro-printing techniques, we develop a versatile experimental setup that allows us to study how lateral confinement tames the active flows and defect properties of the microtubule/kinesin active nematic system. We demonstrate…

We show that the motion of a cold trapped ion can be squeezed by modulating the intensity of a phase-stable optical lattice placed inside the trap. As this method is reversible and state selective it effectively implements a…

In this work, the dependence of reversal potentials and zero-current fluxes on diffusion coefficients are examined for ionic flows through membrane channels. The study is conducted for the setup of a simple structure defined by the profile…

软凝聚态物质 · 物理学 2019-12-17 Bob Eisenberg , Weishi Liu , Hamid Mofidi

The analysis of tunneling experiments showing the pseudogap type behavior is carried out based on the idea of the renormalization of density of states due to the inter-electron interaction in the Cooper channel (superconducting fluctuations…

超导电性 · 物理学 2009-10-31 A. M. Cucolo , M. Cuoco , A. A. Varlamov

Test modes on turbulent magnetized plasmas are studied taking into account the ion trapping that characterizes the E x B drift in the background turbulence. We show that trappyng provides the physical mechanism for the formation of large…

等离子体物理 · 物理学 2012-09-11 Madalina Vlad

Particles confined to a single file, in a narrow quasi-one dimensional channel, exhibit a dynamic crossover from single file diffusion to Fickian diffusion as the channel radius increases and the particles can begin to pass each other. The…

软凝聚态物质 · 物理学 2017-04-27 Sheida Ahmadi , Richard K. Bowles

We investigate the electronic transport properties of a ferromagnet/normal/ferromagnet junction on the surface of a topological insulator with a gate voltage exerted on the normal segment. It is found that the conductance oscillates with…

介观与纳米尺度物理 · 物理学 2012-11-29 K. H. Zhang , Z. C. Wang , Q. R. Zheng , G. Su