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It is shown that a cluster expansion technique, which is usually applied in the high-temperature regime to calcutate virial coefficients, can be applied to evaluate the superfluid transition temperature of the BCS-BEC crossover \`a la Lee…

Quantum Gases · Physics 2014-03-19 Naoyuki Sakumichi , Yusuke Nishida , Masahito Ueda

The increase of the viscosity, which is observed in attractive colloidal systems by varying the temperature or the volume fraction, can be related to the formation of structures due to particle aggregation. In particular we have studied the…

Statistical Mechanics · Physics 2009-11-11 F. Mallamace , S. H. Chen , A. Coniglio , L. de Arcangelis , E. Del Gado , A. Fierro

Cyclic voltammetry (CV) is a powerful technique for characterizing electrochemical properties of electrochemical devices. During charging-discharging cycles, thermal effect has profound impact on its performance, but existing theoretical…

Mesoscale and Nanoscale Physics · Physics 2023-07-04 Teng Zhao , Shuangliang Zhao , Shenggao Zhou , Zhenli Xu

CePd_1-xRh_x alloys exhibit a continuous evolution from ferromagnetism (T_C= 6.5 K) at x = 0 to a mixed valence (MV) state at x = 1. We have performed a detailed investigation on the suppression of the ferromagnetic (F) phase in this alloy…

Strongly Correlated Electrons · Physics 2013-05-29 J. G. Sereni , T. Westerkamp , R. Kuechler , N. Caroca-Canales , P. Gegenwart , C. Geibel

We calculate the dc Josephson current for two superconductor-ferromagnet (S/F) bilayers separated by a thin insulating film. It is demonstrated that the critical Josephson current $I_{c}$ in the junction strongly depends on the relative…

Superconductivity · Physics 2009-11-07 F. S. Bergeret , A. F. Volkov , K. B. Efetov

We find that a uniformly accelerated particle detector coupled to the vacuum can cool down as its acceleration increases, due to relativistic effects. We show that in (1+1)-dimensions, a detector coupled to the scalar field vacuum for…

Quantum Physics · Physics 2016-05-04 Wilson G. Brenna , Robert B. Mann , Eduardo Martin-Martinez

We study the fate of quantum correlations at finite temperature in the two-dimensional toric code using the logarithmic entanglement negativity. We are able to obtain exact results that give us insight into how thermal excitations affect…

Strongly Correlated Electrons · Physics 2018-04-25 Oliver Hart , Claudio Castelnovo

Counterion distribution around an isolated flexible polyelectrolyte in the presence of a divalent salt is evaluated using the adsorption model [M. Muthukumar, J. Chem. Phys. {\bf 120}, 9343 (2004)] that considers Bjerrum length, salt…

Soft Condensed Matter · Physics 2008-12-29 Arindam Kundagrami , M. Muthukumar

Recent evidence for a charge-Kondo effect in superconducting samples of Pb$_{1-x}$Tl$_x$Te [1] has brought renewed attention to the possibility of negative U superconductivity in this material, associated with valence fluctuations on the Tl…

Superconductivity · Physics 2013-05-29 A. S. Erickson , N. P. Breznay , E. A. Nowadnick , T. H. Geballe , I. R. Fisher

We study the shift of the the superconducting transition temperature $T_c$ in ferromagnetic-superconducting bi-layers and in a superconducting film supplied a square array of ferromagnetic dots. We find that the transition temperature in…

Superconductivity · Physics 2009-11-10 Valery L. Pokrovsky , Hongduo Wei

In this work, the self-heating effect in inversion mode FinFET and Junctionless (accumulation mode) FinFET is compared and the influence of the different electrical and geometric parameters on the self-heating effect are considered. It is…

Applied Physics · Physics 2024-02-19 A. E. Atamuratov , B. O. Jabbarova , E. Sh. Xaitbayev , D. R. Rajapov , M. M. Khalilloev

We report the observation of TEMPERATURE-INDUCED transitions between insulator, metal, and quantum-Hall behaviors for transport coefficients in the very dilute high mobility two-dimensional electron system in silicon. We consider the…

Condensed Matter · Physics 2007-05-23 S. V. Kravchenko , Whitney Mason , J. E. Furneaux , J. M. Caulfield , J. Singleton , V. M. Pudalov

Particles at liquid interfaces have the tendency to cluster due to capillary forces competing with gravitational buoyancy (i.e., normal to the distorted free surface). This is known as the Cheerios effect. Here we experimentally and…

Soft Condensed Matter · Physics 2025-04-01 Jochem G. Meijer , Vincent Bertin , Detlef Lohse

We develop a simple numerical method that allows us to calculate the Bardeen-Cooper-Schriefer (BCS) superfluid transition temperature (Tc) precisely for any interaction potential. We apply it to a polarised, ultracold Fermi gas with…

Quantum Gases · Physics 2016-08-10 I. Corro , A. M. Martin

Within the Ginzburg-Landau approach a theoretical study is performed of the effects of confinement on the transition to superconductivity for type-I and type-II materials with surface enhancement. The superconducting order parameter is…

Superconductivity · Physics 2009-10-31 E. Montevecchi , J. O. Indekeu

We study the effects of temperature on the band structure of the Bi$_2$Se$_3$ family of topological insulators using first-principles methods. Increasing temperature drives these materials towards the normal state, with similar…

Materials Science · Physics 2016-11-30 Bartomeu Monserrat , David Vanderbilt

The many-body Monte Carlo method is used to evaluate the frequency dependent conductivity and the average mobility of a system of hopping charges, electronic or ionic on a one-dimensional chain or channel of finite length. Two cases are…

Materials Science · Physics 2009-11-10 Lazaros K. Gallos , Bijan Movaghar , Laurens D. A. Siebbeles

We review recent advances in the physics of strongly interacting charged systems functioning in water at room temperature. We concentrate on the phenomena which go beyond the framework of mean field theories, whether linear Debye-Huckel or…

Soft Condensed Matter · Physics 2007-05-23 A. Yu. Grosberg , T. T. Nguyen , B. I. Shklovskii

We address the issue of inter-particle dipolar interactions in the context of magnetic hyperthermia. More precisely, the main question dealt with here is concerned with the conditions under which the specific absorption rate is enhanced or…

Mesoscale and Nanoscale Physics · Physics 2017-06-05 J. -L. Déjardin , F. Vernay , M. Respaud , H. Kachkachi

Ultracold atoms provide clues to an important many-body problem regarding the dependence of Bose-Einstein condensation (BEC) transition temperature $T_c$ on interactions. However, cold atoms are trapped in harmonic potentials and…

Quantum Gases · Physics 2016-03-30 Tom Kim , Chih-Chun Chien
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