Article
Physics, Particles & Fields
Aristomenis Donos, Christiana Pantelidou, Vaios Ziogas
Summary: In this study, holography was utilized to derive effective theories of fluctuations in spontaneously broken phases, with a focus on systems with finite temperature, chemical potential, magnetic field, and momentum relaxation where translations are broken. The hydrodynamic modes corresponding to coupled thermoelectric and density wave fluctuations were analytically constructed, revealing them to be purely diffusive in the system. Introduction of pinning for density waves resulted in some modes acquiring not only a gap, but also a finite resonance due to the presence of a magnetic field. Optical properties were studied and numerical checks of the analytical results were performed. An important outcome of the analysis was the identification of the correct current responsible for heat transport in the system.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Carlo Ewerz, Andreas Samberg, Paul Wittmer
Summary: In this study, holography was utilized to investigate the dynamics of a vortex-anti-vortex dipole in a strongly coupled superfluid in 2+1 dimensions. Numerical real-time simulations were used to track the evolution of vortices as they approached and annihilated each other. Universal trajectories of vortices were identified, while non-universal effects were attributed to numerical artifacts in vortex initialization. Additionally, the dependence of dynamics on superfluid temperature was explored.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Javier Mas, David Travieso Mayo
Summary: This article revisits the case of a real scalar field in global AdS4 under periodic driving. The authors address the issue of adiabatic preparation and deformation of a time-periodic solution corresponding to a Floquet condensate. They carefully study the case of driving close to the normal mode resonant frequencies and examine different slow protocols. The results show that traversing a normal mode frequency has different consequences depending on the sense of the frequency modulation.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Jinwei Chu, Feiyu Deng, Yang Zhou
Summary: The study defines defect extremal surface by minimizing the Ryu-Takayanagi surface corrected by the quantum theory localized on the defect, and extends the results to higher dimensions. It is found that the entropy computed from bulk defect extremal surface is generally less than that from island formula in boundary low energy effective theory, suggesting a smaller entropy from the UV completion of island formula.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Wen-Bin Pan, Ya-Wen Sun
Summary: This paper investigates the method of generating topologically nontrivial gapless hydrodynamic modes in holographic systems and compares it with the approach used in relativistic hydrodynamics. The study is also extended to the case with one extra U(1) current, revealing the possibility of more complex topological phase diagrams.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Jeong-Won Seo, Taewon Yuk, Young-Kwon Han, Sang-Jin Sin
Summary: In this study, a model with a flat band over a finite region of momentum space is proposed using a bulk interaction term instead of a boundary term. The spectrum of the model is found to be precisely analogous to that of the ABC stacked multilayer graphene. Furthermore, the flat band in the holographic model is bent in the presence of the chemical potential, resembling the band deformation due to spin-orbit interaction.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Zhi Wang, Zekun Xu, Shuyan Zhou, Yang Zhou
Summary: This study investigates the AdS region using the partial reduction method, exploring the relationship between defect extremal surfaces and entropy in boundary CFT. It also demonstrates the existence of a 4-dimensional massless graviton on an AdS(4) brane under partial reduction.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Yu-Ni Yang, Chuan-Yin Xia, Zhang-Yu Nie, Hua-Bi Zeng
Summary: In this study, we investigate the competition between the p-wave and the p+ip superfluid solutions by applying magnetic field intensity H and back reaction parameter b. We find that the p+ip solution is significantly affected while the p-wave solution is only slightly affected when H is turned on. The H-T phase diagrams reveal a slit region of the p+ip phase, with the zero (or finite) value of H at the starting point of the slit region related to second (or first) order p-wave phase transition at zero magnetic intensity, which is expected to be universal in systems with degenerate critical points at zero magnetic field.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Ronnie Rodgers, Enea Mauri, Umut Gursoy, Henk T. C. Stoof
Summary: The study focuses on various thermodynamic and transport properties of a holographic model of a nodal line semimetal at finite temperature, including the quantum phase transition and the disappearance of nodal lines as temperature increases. By introducing a new nonlinear coupling, the low frequency limit of electrical conductivity can be controlled to better match the real NLSMs. The anisotropy of the boundary quantum field theory leads to explicitly broken Lorentz invariance, impacting the stress tensor and thermal conductivity.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Peng Yang, Xin Li, Yu Tian
Summary: The instability of superfluids in optical lattice was investigated using a holographic model. Numerical solutions for static and steady flow were obtained, and the instability was studied at both linear perturbation and fully nonlinear levels. The results showed a chaotic state with soliton generation before eventually settling into a stable state.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Debabrata Ghorai, Taewon Yuk, Sang-Jin Sin
Summary: In this study, we investigate the fermionic spectral function in p-wave holographic superconductors. We find that the vector model with minimal coupling exhibits a p-wave spectral function with Fermi arc, in contrast to previous studies where the p-wave arc was shown in the presence of a tensor field. We examine the momentum-dependent order parameter, the omega-gap in the real part of the conductivity, and the impact of coupling constants, temperature, and chemical potential on the spectral function.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Debabrata Ghorai, Yoon-Seok Choun, Sang-Jin Sin
Summary: In this paper, we reevaluate the angular dependence in gap structure of holographic superconductors and analyze the vector field model and scalar order model in detail. Some interesting conclusions are drawn, including the comparison of critical temperature between the two models.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Chong-Ye Chen, Wei Xiong, Chao Niu, Cheng-Yong Zhang, Peng Liu
Summary: In the study of holographic Aether gravity theory, it is found that the entanglement wedge cross-section (EWCS) exhibits rich non-monotonic behaviors, while the holographic entanglement entropy (HEE) and the corresponding mutual information (MI) only display monotonic behaviors. This suggests that the EWCS may capture more diverse entanglement content than the HEE and the MI, and the role of Lorentz violation in determining the behaviors of quantum information-related quantities is analyzed.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Zhi-Hong Li, Han-Qing Shi, Hai-Qing Zhang
Summary: We investigate the formation of topological defects during the dynamical phase transition in a ring using the AdS/CFT correspondence. The results show that the configurations of the order parameter phases and correlation functions vary with different boundary conditions.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Shuta Ishigaki, Shunichiro Kinoshita, Masataka Matsumoto
Summary: In this study, the dynamical stability of a holographic conductor with a constant current under an external electric field is analyzed. The focus is on the stability in the parameter region where the multivalued relation between the external electric field and the current occurs due to nonlinear conductivity. The analysis shows that the states in one branch with a low electric current can be dynamically unstable, and the perturbations around the unstable states can become stable with finite wavenumber, indicating the existence of inhomogeneous steady states with current filaments.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Multidisciplinary
Saso Grozdanov, Wilke van der Schee
PHYSICAL REVIEW LETTERS
(2017)
Article
Physics, Particles & Fields
Brandon S. DiNunno, Saso Grozdanov, Juan F. Pedraza, Steve Young
JOURNAL OF HIGH ENERGY PHYSICS
(2017)
Article
Physics, Multidisciplinary
Saso Grozdanov, Koenraad Schalm, Vincenzo Scopelliti
PHYSICAL REVIEW LETTERS
(2018)
Article
Physics, Multidisciplinary
Jorge Casalderrey-Solana, Saso Grozdanov, Andrei O. Starinets
PHYSICAL REVIEW LETTERS
(2018)
Article
Physics, Particles & Fields
Mike Blake, Richard A. Davison, Saso Grozdanov, Hong Liu
JOURNAL OF HIGH ENERGY PHYSICS
(2018)
Article
Physics, Particles & Fields
Saso Grozdanov
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Physics, Multidisciplinary
Saso Grozdanov, Pavel K. Kovtun, Andrei O. Starinets, Petar Tadic
PHYSICAL REVIEW LETTERS
(2019)
Article
Physics, Particles & Fields
Saso Grozdanov, Andrei O. Starinets
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Physics, Particles & Fields
Saso Grozdanov, Napat Poovuttikul
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Physics, Particles & Fields
Saso Grozdanov, Pavel K. Kovtun, Andrei O. Starinets, Petar Tadic
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Physics, Particles & Fields
Asmund Folkestad, Saso Grozdanov, Krishna Rajagopal, Wilke van der Schee
JOURNAL OF HIGH ENERGY PHYSICS
(2019)
Article
Astronomy & Astrophysics
Saso Grozdanov, Andrew Lucas, Napat Poovuttikul
Article
Physics, Fluids & Plasmas
Saso Grozdanov, Koenraad Schalm, Vincenzo Scopelliti
Article
Astronomy & Astrophysics
Saso Grozdanov, Napat Poovuttikul
Article
Astronomy & Astrophysics
Saso Grozdanov, Diego M. Hofman, Nabil Iqbal