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相关论文: Linear-in-$T$ resistivity from semiholographic non…

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We calculate numerically the quasiparticle effective mass (m*) renormalization as a function of temperature and electron density in two- and three-dimensional electron systems with long-range Coulomb interaction. In two dimensions, the…

强关联电子 · 物理学 2007-05-23 Ying Zhang , S. Das Sarma

Heat and charge transport were used to probe the magnetic field-tuned quantum critical point in the heavy-fermion metal CeCoIn$_5$. A comparison of electrical and thermal resistivities reveals three characteristic energy scales. A…

We derive the Hamiltonian for cold fermionic atoms in an optical lattice across a broad Feshbach resonance, taking into account of both multiband occupations and neighboring-site collisions. Under typical configurations, the resulting…

其他凝聚态物理 · 物理学 2009-11-11 L. -M. Duan

We propose a minimal theoretical model for the description of a two-dimensional (2D) strongly interacting Fermi gas confined transversely in a tight harmonic potential, and present accurate predictions for its equation of state and…

量子气体 · 物理学 2020-04-22 Fan Wu , Jianshen Hu , Lianyi He , Xia-Ji Liu , Hui Hu

We analyze the dynamical response functions of strongly interacting quantum critical states described by conformal field theories (CFTs). We construct a self-consistent holographic model that incorporates the relevant scalar operator…

高能物理 - 理论 · 物理学 2016-10-12 Robert C. Myers , Todd Sierens , William Witczak-Krempa

We prove that the two dimensional Hubbard model at finite temperature T and half-filling is analytic in the coupling constant in a radius at least $c/(\log T)^2$. We also study the self-energy through a new two-particle irreducible…

强关联电子 · 物理学 2009-11-10 Stephane Afchain , Jacques Magnen , Vincent Rivasseau

We consider a quantum system of non-interacting fermions at temperature T, in the framework of linear response theory. We show that semiclassical theory is an appropriate framework to describe some of their thermodynamic properties, in…

数学物理 · 物理学 2009-11-07 Monique Combescure , Didier Robert

We construct a fully quantum zero-temperature electron star in a soft-wall regulated anti-de-Sitter Einstein-Maxwell-Dirac theory that is thermodynamically stable compared to the Reissner-Nordstr\"{o}m black hole. The soft wall only acts on…

高能物理 - 理论 · 物理学 2022-09-07 Nicolas Chagnet , Vladan Djukić , Mihailo Čubrović , Koenraad Schalm

Quantum many-body systems may defy thermalization even without disorder. Intriguingly, non-ergodicity may be caused by a fragmentation of the many-body Hilbert-space into dynamically disconnected subspaces. The tilted one-dimensional…

A refined semi-holographic non-Fermi liquid model, in which carrier electrons hybridize with operators of a holographic critical sector, has been proposed recently for strange metallic behavior. The model, consistently with effective theory…

强关联电子 · 物理学 2024-09-24 Sutapa Samanta , Hareram Swain , Benoît Douçot , Giuseppe Policastro , Ayan Mukhopadhyay

Motivated by a semi-holographic approach to the dynamics of quark-gluon plasma which combines holographic and perturbative descriptions of a strongly coupled infrared and a more weakly coupled ultraviolet sector, we construct a hybrid…

高能物理 - 唯象学 · 物理学 2018-08-29 Aleksi Kurkela , Ayan Mukhopadhyay , Florian Preis , Anton Rebhan , Alexander Soloviev

The linear-$T$ resistivity is one of the characteristic and universal properties of strange metals. There have been many progress in understanding it from holographic perspective (gauge/gravity duality). In most holographic models, the…

高能物理 - 理论 · 物理学 2024-07-01 Hyun-Sik Jeong , Keun-Young Kim , Chao Niu

We present the ${\cal O}(\lambda^3)$ results from the $\lambda$ expansion in the extremely correlated Fermi liquid theory applied to the infinite-dimensional $t$-$J$ model (with $J=0$), and compare the results with the earlier ${\cal…

强关联电子 · 物理学 2026-01-14 Samantha Shears , Edward Perepelitsky , Michael Arciniaga , Sriram Shastry

Electronic correlation effects are manifested in quantum materials when either the onsite Coulomb repulsion is large or the electron kinetic energy is small. The former is the dominant effect in the cuprate superconductors or heavy fermion…

We consider the Coulomb drag between two two-dimensional electron layers at filling factor \nu = 1/2 each, using a strong coupling approach within the composite fermion picture. Due to an attractive interlayer interaction, composite…

介观与纳米尺度物理 · 物理学 2009-10-31 Iddo Ussishkin , Ady Stern

Using the method of continuous renormalization group around the Fermi surface, we prove that a two-dimensional jellium interacting system of Fermions at low temperature T is a Fermi liquid (analytic in the coupling constant g) for g <…

超导电性 · 物理学 2009-10-31 M. Disertori , V. Rivasseau

In a partially filled flat Bloch band electrons do not have a well defined Fermi surface and hence the low-energy theory is not a Fermi liquid. Neverethless, under the influence of an attractive interaction, a superconductor well described…

强关联电子 · 物理学 2017-01-05 Murad Tovmasyan , Sebastiano Peotta , Päivi Törmä , Sebastian D. Huber

We study helical structures in spin-spiral single crystals. In the continuum approach for the helicity potential energy the simple electronic band splits into two non-parabolic bands. For the Fermi energy greater than the splitting between…

介观与纳米尺度物理 · 物理学 2022-11-23 Andrei Zadorozhnyi , Yuri Dahnovsky

In our short review, we consider the transport properties of strongly correlated Fermi systems like heavy fermion metals and high-$T_c$ superconductors. Their transport properties are defined by strong inter-particle interaction forming…

强关联电子 · 物理学 2023-11-16 V. R. Shaginyan , A. Z. Msezane , M. V. Zverev

One of the major challenges in realizing antiferromagnetic and superfluid phases in optical lattices is the ability to cool fermions. We determine constraints on the entropy for observing these phases in two-dimensional Hubbard models. We…

量子气体 · 物理学 2015-05-13 Thereza Paiva , Richard Scalettar , Mohit Randeria , Nandini Trivedi