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We study analytically and numerically the decay of a metastable phase in (2+1)-dimensional classical scalar field theory coupled to a heat bath, which is equivalent to two-dimensional Euclidean quantum field theory at zero temperature. By a…

High Energy Physics - Phenomenology · Physics 2009-10-22 M. Alford , M. Gleiser

This study provides new sets of experimental results supporting Westerlund's conjecture that Dead Matter Has Memory. Memory effects in the dynamic response of electric double-layer capacitors (EDLCs) that integrate its prior history of…

Applied Physics · Physics 2023-02-09 Anis Allagui , Di Zhang , Ahmed Elwakil

We investigate the emerging consequences of an applied strong in-plane electric field on a macroscopically large graphene sheet subjected to a perpendicular magnetic field, by determining in exact analytical form various many-body…

General Physics · Physics 2018-02-07 Georgios Konstantinou , Konstantinos Moulopoulos

In non-equilibrium experiments on the glasses Mylar and BK7, we measured the excess dielectric response after the temporary application of a strong electric bias field at mK--temperatures. A model recently developed describes the observed…

Disordered Systems and Neural Networks · Physics 2009-11-10 S. Ludwig , D. D. Osheroff

We study field-effect transistors realized from VO2 nanobeams with HfO2 as the gate dielectric. When heated up from low to high temperatures, VO2 undergoes an insulator-to-metal transition. We observe a change in conductance (~ 6 percent)…

Strongly Correlated Electrons · Physics 2011-09-30 Shamashis Sengupta , Kevin Wang , Kai Liu , Ajay K. Bhat , Sajal Dhara , Junqiao Wu , Mandar M. Deshmukh

The presence of bound states in a nanoscale electronic system attached to two biased, macroscopic electrodes is shown to give rise to persistent, non-decaying, localized current oscillations which can be much larger than the steady part of…

Mesoscale and Nanoscale Physics · Physics 2019-03-27 E. Khosravi , G. Stefanucci , S. Kurth , E. K. U. Gross

A two-dimensional model of an electron moving under the influence of an attractive zero-range potential as well as external magnetic and electric fields is analyzed. We prove by numerical investigations that there are formed such resonances…

Quantum Physics · Physics 2007-05-23 Katarzyna Krajewska , Jerzy Z. Kaminski

The electric fields near the heterogeneous metal/dielectric surface of an atom chip were measured using cold atoms. The atomic sensitivity to electric fields was enhanced by exciting the atoms to Rydberg states that are 10^8 times more…

Atomic Physics · Physics 2012-11-02 J. D. Carter , O. Cherry , J. D. D. Martin

Recently, it has been discovered that in contrast to expectations the low-temperature dielectric properties of some multi-component glasses depend strongly on magnetic fields. In particular, the low-frequency dielectric susceptibility and…

Disordered Systems and Neural Networks · Physics 2009-11-07 C. Enss , S. Ludwig

The effect of electric field, applied on systems in the nanoscale regime has attracted a lot of research in recent times. We highlight some of the recent results in the field of single molecule electronics and then move on to focus on some…

Materials Science · Physics 2008-10-11 S. Lakshmi , Sudipta Dutta , Swapan K. Pati

When a composite containing nonlinear dielectric particles suspended in a host medium is subjected to a sinusoidal alternating current (ac) electric field, the dielectric response of the composite will generally consist of ac fields at…

Soft Condensed Matter · Physics 2007-05-23 J. P. Huang

Neural electromagnetic (EM) signals recorded non-invasively from individual human subjects vary in complexity and magnitude. Nonetheless, variation in neural activity has been difficult to quantify and interpret, due to complex, broad-band…

Neurons and Cognition · Quantitative Biology 2018-07-04 Trang-Anh Nghiem , Jean-Marc Lina , Matteo di Volo , Cristiano Capone , Alan C. Evans , Alain Destexhe , Jennifer S. Goldman

The resonance energy and the transition rate of atoms, molecules and solids were understood as their intrinsic properties in classical electromagnetism. With the development of quantum electrodynamics, it is realized that these quantities…

Mesoscale and Nanoscale Physics · Physics 2020-05-07 Jason Horng , Yu-Hsun Chou , Tsu-chi Chang , Chu-Yuan Hsu , Tien-chang Lu , Hui Deng

We characterize in details the aging properties of the ferroelectric phase of K Ta_{1-x} Nb_x O_3 (KTN), where both rejuvenation and (partial) memory are observed. In particular, we carefully examine the frequency dependence of several…

Condensed Matter · Physics 2009-10-31 J. P. Bouchaud , P. Doussineau , T. de Lacerda-Arôso , A. Levelut

Trapping a Rydberg atom close to a surface is an important step towards the realisation of many proposals of quantum information or hybrid quantum systems. One of the challenges in these experiments is to overcome the electric field…

We investigate slow dynamics of collection of a few antiferromagnetic NiO nanoparticles. The zero-field cooled magnetization exhibits size dependent fluctuations. We find memory effects in field cooled magnetization, as well as aging…

Mesoscale and Nanoscale Physics · Physics 2011-01-18 Sunil Kumar Mishra

We study the effects of a static electric field on the photoassociation of a heteronuclear atom-pair into a polar molecule. The interaction of permanent dipole moment with a static electric field largely affects the ground state continuum…

Atomic Physics · Physics 2015-05-27 Debashree Chakraborty , Jisha Hazra , Bimalendu Deb

We propose a quantum memory protocol where a input light field can be stored onto and released from a single ground state atomic ensemble by controlling dynamically the strength of an external static and homogeneous field. The technique…

Quantum Physics · Physics 2013-12-04 G. Hétet , D. Wilkowski , T. Chanelière

In this Letter, we theoretically demonstrate that a uniform static electric field distribution can be partially converted to radiation fields when a portion of the medium undergoes a temporal change of its permittivity. An in-depth…

In this work, we have studied the effects from increasing the strength of the applied electric field on the charge transport of hydrogenated graphitic fibers. Resistivity measurements were carried out for direct currents in the nA - mA…

Materials Science · Physics 2020-05-19 Nadina Gheorghiu , Charles R. Ebbing , Timothy J. Haugan