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A phase space is built that allows to study, classify and compare easily large classes of static spherically symmetric wormholes solutions, sustained by an isotropic perfect fluid in General Relativity. We determine the possible locations…

General Relativity and Quantum Cosmology · Physics 2020-01-01 Stephane Fay

The Sachdev-Ye-Kitaev model (SYK) is renowned for its short-time chaotic behavior, which plays a fundamental role in its application to various fields such as quantum gravity and holography. The Thouless energy, representing the energy…

Strongly Correlated Electrons · Physics 2024-01-17 Richard Berkovits

This is the first part of a series of papers on the spectrum of the SYK model, which is a simple model of the black hole in physics literature. In this paper, we will give a rigorous proof of the almost sure convergence of the global…

Mathematical Physics · Physics 2019-08-06 Renjie Feng , Gang Tian , Dongyi Wei

We present a JT gravity setup coupled with $U(1)$ and $SU(2)$ Yang-Mills fields in two dimensions that reveals the onset of a small black hole to large black hole phase transition at finite chemical potential(s). We identify these black…

High Energy Physics - Theory · Physics 2025-01-22 Hemant Rathi , Dibakar Roychowdhury

Inspired by recent developments in the study of the model of double scaled SYK (DSSYK), as elucidated in a recent paper, we embark on a re-evaluation of the Sachdev-Ye-Kitaev (SYK) model. Our motivation stems from the insights gained from…

High Energy Physics - Theory · Physics 2025-07-08 Davood Momeni

Supersymmetry is a powerful concept in quantum many-body physics. It helps to illuminate ground state properties of complex quantum systems and gives relations between correlation functions. In this work, we show that the Sachdev-Ye-Kitaev…

Strongly Correlated Electrons · Physics 2020-06-15 Jan Behrends , Benjamin Béri

The Sachdev-Ye-Kitaev (SYK) model can be used to describe black holes (BHs) in two-dimensional nearly-anti-de-Sitter gravity. We show that when such BHs are perturbed by a time-dependent negative-energy perturbation, their interior can be…

High Energy Physics - Theory · Physics 2019-04-03 Ram Brustein , Yoav Zigdon

We introduce a frustration-free, one-dimensional model of spinless fermions with hopping, p-wave superconducting pairing and alternating chemical potentials. The model possesses two exactly degenerate ground states even for finite system…

Strongly Correlated Electrons · Physics 2023-02-28 Jurriaan Wouters , Hosho Katsura , Dirk Schuricht

We present an exact solution in the large-$N$ limit of the L\'{e}vy Sachdev-Ye-Kitaev (LSYK) model introduced in Ref. [1], wherein the couplings are drawn from a L\'{e}vy Stable distribution parameterized by a tail exponent $\mu \in [0,…

High Energy Physics - Theory · Physics 2026-04-17 Budhaditya Bhattacharjee , William. E. Salazar , Alexei Andreanov , Dario Rosa

The eigenstate thermalization hypothesis is a compelling conjecture which strives to explain the apparent thermal behavior of generic observables in closed quantum systems. Although we are far from a complete analytic understanding, quantum…

High Energy Physics - Theory · Physics 2018-02-27 Nicholas Hunter-Jones , Junyu Liu , Yehao Zhou

We study thermodynamic phase transitions between integrable and chaotic dynamics. We do so by analyzing models that interpolate between the chaotic double scaled Sachdev-Ye-Kitaev (SYK) and the integrable $p$-spin systems, in a limit where…

High Energy Physics - Theory · Physics 2024-10-24 Micha Berkooz , Nadav Brukner , Yiyang Jia , Ohad Mamroud

We study a dual flavor fermion model where each of the flavors form a Sachdev-Ye-Kitaev (SYK) system with arbitrary and possibly distinct $q$-body interactions. The crucial new element is an arbitrary all-to-all $r$-body interaction between…

Strongly Correlated Electrons · Physics 2018-10-31 Arijit Haldar , Vijay B. Shenoy

We introduce and solve a model of interacting electrons and phonons that is a natural generalization of the Sachdev-Ye-Kitaev-model and that becomes superconducting at low temperatures. In the normal state two Non-Fermi liquid fixed points…

Strongly Correlated Electrons · Physics 2019-09-25 Ilya Esterlis , Jörg Schmalian

We consider the question of entanglement conservation in the context of the ER=EPR correspondence equating quantum entanglement with wormholes. In quantum mechanics, the entanglement between a system and its complement is conserved under…

High Energy Physics - Theory · Physics 2016-07-13 Grant N. Remmen , Ning Bao , Jason Pollack

We study the effect of modular flow on correlation functions of fermions in the Sachdev-Ye-Kitaev (SYK) model coupled weakly to a bath, which we take to be another SYK model. The system and bath, together are prepared in the thermofield…

High Energy Physics - Theory · Physics 2026-05-01 Nicolò Bragagnolo , S. Prem Kumar

Estimating local observables in Gibbs states is a central problem in quantum simulation. While this task is BQP-complete at asymptotically low temperatures, the possibility of quantum advantage at constant temperature remains open. The…

Quantum Physics · Physics 2026-04-24 Alexander Zlokapa

SYK model is a quantum mechanical model of fermions which is solvable at strong coupling and plays an important role as perhaps the simplest holographic model of quantum gravity and black holes. The present work considers a deformed SYK…

High Energy Physics - Theory · Physics 2020-01-08 Avinash Dhar , Adwait Gaikwad , Lata Kh Joshi , Gautam Mandal , Spenta R. Wadia

We compute the thermodynamic properties of the Sachdev-Ye-Kitaev (SYK) models of fermions with a conserved fermion number, $\mathcal{Q}$. We extend a previously proposed Schwarzian effective action to include a phase field, and this…

Strongly Correlated Electrons · Physics 2017-04-26 Richard A. Davison , Wenbo Fu , Antoine Georges , Yingfei Gu , Kristan Jensen , Subir Sachdev

We consider two complex SYK models entangled in a thermofield double (TFD) state and investigate the effect of one-sided projective measurements. As measurement operator we choose single site charge operators. Performing a measurement…

High Energy Physics - Theory · Physics 2025-01-20 Raphael Brinster , Stefan Forste , Yannic Kruse , Saurabh Natu

We study the dynamical decoherence of a qubit weakly coupled to a two-body random interaction model (TBRIM) describing a quantum dot of interacting fermions or the Sachdev-Ye-Kitaev (SYK) black hole model. We determine the rates of qubit…

Strongly Correlated Electrons · Physics 2018-10-23 Klaus M. Frahm , Dima L. Shepelyansky