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A single-channel quantum wire with two well-separated Zeeman subbands and in the presence of a weak spin-orbit coupling is considered. An impurity level which is split off the upper subband is degenerate with the continuum of the lower…

Mesoscale and Nanoscale Physics · Physics 2018-10-17 Rajesh K. Malla , M. E. Raikh

We investigate the metastability associated with the first order transition from normal to superfluid phases in the phase diagram of two-component polarised Fermi gases.We begin by detailing the dominant decay processes of single…

Quantum Gases · Physics 2015-03-17 Kayvan Sadeghzadeh , Georg Bruun , Carlos Lobo , Pietro Massignan , Alessio Recati

A full-F, isothermal, electromagnetic, gyro-fluid model is used to simulate plasma turbulence in a COMPASS-sized, diverted tokamak. A parameter scan covering three orders of magnitude of plasma resistivity and two values for the ion to…

Plasma Physics · Physics 2023-09-20 M. Wiesenberger , M. Held

A proposal for the CEPC ECAL is a highly-granular scintillating crystal design that uses SiPMs to measure physics signals from photons. Radiation damage to the silicon will impair the performance of the calorimeter due to dark noise, which…

Instrumentation and Detectors · Physics 2025-02-24 Jack Rolph , Yong Liu , Baohua Qi , Zhiyu Zhao

Coexistence of surface superconductivity and Fermi arcs in trigonal $\gamma$-PtBi$_2$ has recently attracted attention for possible realization of topological superconductivity. The Fermi arcs on the two different (0001) surface…

Materials Science · Physics 2026-01-09 Lin-Lin Wang

We formulate the theory of the two-stream instability (e-cloud instability) with electrons trapped in quadrupole magnets. We show that a linear instability theory can be sensibly formulated and analyzed. The growth rates are considerably…

Accelerator Physics · Physics 2009-08-24 Paul J. Channell

The expansion and collision of two wind-blown superbubbles is investigated numerically. Our models go beyond previous simulations of molecular cloud formation from converging gas flows by exploring this process with realistic flow…

Astrophysics of Galaxies · Physics 2015-05-20 Evangelia Ntormousi , Andreas Burkert , Katharina Fierlinger , Fabian Heitsch

We show that the low-density strongly interacting electron liquid, interacting via the long-range Coulomb interaction, could develop a dispersion instability at a critical density associated with the approximate flattening of the…

Strongly Correlated Electrons · Physics 2007-05-23 Ying Zhang , V. M. Yakovenko , S. Das Sarma

Mixed-phase clouds, composed of supercooled liquid droplets and ice crystals, play a critical role in weather and climate systems. Their complex microphysical interactions and coupling with turbulence at microscales govern the cloud…

Precession Electron Diffraction (PED) offers a number of advantages for crystal structure analysis and solving unknown structures using electron diffraction. The current article uses many-beam simulations of PED intensities, in combination…

Materials Science · Physics 2025-09-22 W. Sinkler , L. D. Marks

Around the snow line, icy pebbles and silicate dust may locally pile-up and form icy and rocky planetesimals via streaming instability and/or gravitational instability. We perform 1D diffusion-advection simulations that include the…

Earth and Planetary Astrophysics · Physics 2021-02-03 Ryuki Hyodo , Tristan Guillot , Shigeru Ida , Satoshi Okuzumi , Andrew N. Youdin

Electronic structures of three superconducting rare-earth iron silicides (Lu;Y;Sc)2Fe3Si5 and non-superconducting Lu2Ru3Si5, adopting a tetragonal crystal structure (P4/mnc), have been calculated employing the full-potential local-orbital…

Superconductivity · Physics 2014-09-08 M. Samsel-Czekała , M. J. Winiarski

The evolutionary existence of plasma fireballs is a generic phenomenon realizable in diversified physical plasma-dominated circumstances starting from the laboratory to the astrocosmic scales of space and time. A fair understanding of such…

High Energy Astrophysical Phenomena · Physics 2022-09-28 Subham Dutta , Pralay Kumar Karmakar

We consider a dilute two-component atomic fermion gas with unequal populations in a harmonic trap potential using the mean field theory and the local density approximation. We show that the system is phase separated into concentric shells…

Other Condensed Matter · Physics 2007-05-23 C. -H. Pao , S. -K. Yip

We propose an experimental setup using ultracold atoms to implement a bilayer honeycomb lattice with Bernal stacking. In presence of a potential bias between the layers and at low densities, Fermions placed in this lattice form an annular…

Strongly Correlated Electrons · Physics 2016-12-07 Santanu Dey , Rajdeep Sensarma

We investigate instability and dynamical properties of nanoelectromechanical systems represented by a single-electron device containing movable quantum dot attached to a vibrating cantilever via asymmetric tunnel contact. The Kondo…

Mesoscale and Nanoscale Physics · Physics 2014-04-02 Taegeun Song , Mikhail N. Kiselev , Konstantin Kikoin , Robert I. Shekhter , Leonid Y. Gorelik

We investigate the instabilities of interacting electrons on the honeycomb bilayer by means of the functional renormalization group for a range of interactions up to the third-nearest neighbor. Besides a novel instability toward a gapless…

Strongly Correlated Electrons · Physics 2012-08-20 Michael M. Scherer , Stefan Uebelacker , Carsten Honerkamp

In this paper I briefly review recent theoretical results derived within the Finkel'stein nonlinear sigma model approach for description of 2D interacting disordered electron systems. The examples include an electron system with two…

Mesoscale and Nanoscale Physics · Physics 2019-03-19 I. S. Burmistrov

Motivated by a recent experiment [Phys. Rev. Lett. 106, 150401 (2011)] we simulate the collision between two clouds of cold Fermi gas at unitarity conditions by using an extended Thomas-Fermi density functional. At variance with the current…

Quantum Gases · Physics 2012-06-18 F. Ancilotto , L. Salasnich , F. Toigo

The branched pattern typically observed through the scanning gate microscopy (SGM) of two dimensional electron gases in the presence of weak, smooth disorder has recently been found to be robust against a very large shift in the Fermi…

Mesoscale and Nanoscale Physics · Physics 2019-11-27 Keith R. Fratus , Rodolfo A. Jalabert , Dietmar Weinmann