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We investigate the properties of holographic fermions in charged Lifshitz black holes at finite temperature through the AdS/CFT correspondence. In the charged Lifshitz background with the dynamical exponent $z=2$, we find that the…

High Energy Physics - Theory · Physics 2012-11-22 Li Qing Fang , Xian-Hui Ge , Xiao-Mei Kuang

Taking into account that the real quantum materials are engineered generically at a finite chemical potential, we investigate the Einstein ring structure for the lensed response of the complex scalar field as a probe wave on the charged AdS…

High Energy Physics - Theory · Physics 2022-11-23 Yuxuan Liu , Qian Chen , Xiao-Xiong Zeng , HongBao Zhang , Wen-Liang Zhang

This thesis is dedicated to the holographic study of flavor dynamics. The technique employed is a D7-brane probing of various D3-brane backgrounds. The first topic covered studies the influence of an external magnetic field on a flavored…

High Energy Physics - Theory · Physics 2008-09-29 Veselin G. Filev

With the Sturm-Liouville analytical and numerical methods, we investigate the behaviors of the holographic superconductors by introducing a complex charged scalar field coupled with a Power-Maxwell field in the background of $d$-dimensional…

High Energy Physics - Theory · Physics 2015-05-28 Jiliang Jing , Qiyuan Pan , Songbai Chen

The Thirring model in 2+1 spacetime dimensions, in which $N$ flavors of relativistic fermion interact via a contact interaction between conserved fermion currents, is studied using lattice field theory simulations employing domain wall…

High Energy Physics - Lattice · Physics 2019-02-20 Simon Hands

In the context of 2+1 dimensional Dirac materials, we consider electromagnetic interactions alongside a type of spin-dependent Hubbard interaction. The former is described by PQED theory, while the latter corresponds to an effective theory…

High Energy Physics - Theory · Physics 2024-05-17 Qiao Yang , Yu-Biao Wu , Wu-Ming Liu

We explore the behaviors of the holographic superconductors at zero temperature for a charged scalar field coupled to a Maxwell field in higher-dimensional AdS soliton spacetime via analytical way. In the probe limit, we obtain the critical…

General Relativity and Quantum Cosmology · Physics 2015-06-04 Chong Oh Lee

There is theoretical evidence that the number of degrees of freedom in quantum fields decreases as one studies them at extremely short distances. This emerges from the study of entropy of black holes, as well as from holographic theories in…

High Energy Physics - Theory · Physics 2023-08-30 Satish Ramakrishna

We study the intersections of two sets of D-branes of different dimensionalities. This configuration is dual to a supersymmetric gauge theory with flavor hypermultiplets in the fundamental representation of the gauge group which live on the…

High Energy Physics - Theory · Physics 2016-06-29 Georgios Itsios , Niko Jokela , Alfonso V. Ramallo

We present results for a Bayesian analysis of the location of the QCD critical point constrained by first-principles lattice QCD results at zero baryon density. We employ a holographic Einstein-Maxwell-dilaton model of the QCD equation of…

We calculate the effect of a static electric field on the critical temperature of a s-wave one band superconductor in the framework of proximity effect Eliashberg theory. In the weak electrostatic field limit the theory has no free…

Superconductivity · Physics 2017-08-16 G. A. Ummarino , E. Piatti , D. Daghero , R. S. Gonnelli , Irina Yu. Sklyadneva , E. V. Chulkov , R. Heid

The subprocess $gg \to t\bar{c}+\bar{t}c$ in the two-Higgs-doublet model with flavor-changing scalar couplings is examined at the one loop level. With perturbative QCD factorization theorem, the corresponding cross sections for…

High Energy Physics - Phenomenology · Physics 2009-10-31 Chao-Hsi Chang , Liang Han , Yi Jiang , Wen-Gan Ma , Hong Zhou , Mian-Lai Zhou

In this review, we provide an up-to-date account of quantitative holographic descriptions of the strongly coupled quark-gluon plasma (QGP) produced in heavy-ion collisions, based on the class of gauge-gravity Einstein-Maxwell-Dilaton (EMD)…

With the help of AdS/CFT correspondence, we analyze the holographic Einstein images via the response function of the complex scalar field as a probe wave on the AdS Schwarzschild scalar-tensor-vector gravity (STVG) black hole (BH). We find…

General Relativity and Quantum Cosmology · Physics 2023-11-09 Xiao-Xiong Zeng , M. Israr Aslam , Rabia Saleem , Xin-Yun Hu

A holographic dual description of a 2+1 dimensional system of strongly interacting fermions at low temperature and finite charge density is given in terms of an electron cloud suspended over the horizon of a charged black hole in…

High Energy Physics - Theory · Physics 2015-03-17 V. Giangreco M. Puletti , S. Nowling , L. Thorlacius , T. Zingg

We describe a strongly coupled layered system in 3+1 dimensions by means of a top-down D-brane construction. Adjoint matter is encoded in a large-$N_c$ stack of D3-branes, while fundamental matter is confined to $(2+1)$-dimensional defects…

High Energy Physics - Theory · Physics 2020-02-07 Ulf Gran , Niko Jokela , Daniele Musso , Alfonso V. Ramallo , Marcus Tornsö

We examine the subprocess $\gamma\gamma \to t\bar{c}+\bar{t}c$ at electron-positron colliders in the two-Higgs-doublet model with flavor-changing scalar couplings, where all the one-loop contribuions are considered, and the results are…

High Energy Physics - Phenomenology · Physics 2011-07-19 Jiang Yi , Zhou Mian-Lai , Ma Wen-Gan , Han Liang , Zhou Hong , Han Meng

In this article we employ the matching method to analytically investigate the properties of holographic superconductors in the framework of Maxwell electrodynamics taking into account the effects of back reaction on spacetime. The…

High Energy Physics - Theory · Physics 2020-02-04 Suchetana Pal , Saumya Ghosh , Sunandan Gangopadhyay

This dissertation investigates the flavor mixing effects in supersymmetric models on electroweak precision observables, Higgs boson mass predictions, B-physics observables, quark flavor violating Higgs decays, lepton flavor violating…

High Energy Physics - Phenomenology · Physics 2016-05-09 Muhammad Rehman

Flavour changing effects originating from the exchange of scalar particles in the processes e^+ e^- -> H b \bar{s}, H \bar{b} s, with H = h^0, H^0, A^0, are investigated in the Minimal Supersymmetric Standard Model with non-minimal flavour…

High Energy Physics - Phenomenology · Physics 2009-01-07 W. Hollik , S. Penaranda , M. Vogt
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