Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Micha Berkooz"'
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 8, Pp 1-62 (2023)
Abstract We study the double-scaling limit of SYK (DS-SYK) model and elucidate the underlying quantum group symmetry. The DS-SYK model is characterized by a parameter q, and in the q → 1 and low-energy limit it goes over to the familiar Schwarzian
Externí odkaz:
https://doaj.org/article/cec8e4d0fa864e388991db38188e375a
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 8, Pp 1-52 (2022)
Abstract We discuss generalizations of the TFD to a density matrix on the doubled Hilbert space. We suggest that a semiclassical wormhole corresponds to a certain class of such density matrices, and specify how they are constructed. Different semi-cl
Externí odkaz:
https://doaj.org/article/0b860ed82d6c49eb82d588ef0add9b41
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 9, Pp 1-70 (2021)
Abstract We consider multi-energy level distributions in the SYK model, and in particular, the role of global fluctuations in the density of states of the SYK model. The connected contributions to the moments of the density of states go to zero as N
Externí odkaz:
https://doaj.org/article/8c9cb8eb591646b885e8a6ed2e6ae7b1
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 2, Pp 1-62 (2021)
Abstract We solve for the exact energy spectrum, 2-point and 4-point functions of the complex SYK model, in the double scaling limit at all energy scales. This model has a U(1) global symmetry. The analysis shows how to incorporate a chemical potenti
Externí odkaz:
https://doaj.org/article/bd318b3066c54fbcaf23229c1ad6fa1f
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 12, Pp 1-64 (2020)
Abstract We compute the exact density of states and 2-point function of the N $$ \mathcal{N} $$ = 2 super-symmetric SYK model in the large N double-scaled limit, by using combinatorial tools that relate the moments of the distribution to sums over or
Externí odkaz:
https://doaj.org/article/3ef7185d310148708cb8c05844546714
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 3, Pp 1-72 (2019)
Abstract We compute the exact, all energy scale, 4-point function of the large N doublescaled SYK model, by using only combinatorial tools and relating the correlation functions to sums over chord diagrams. We apply the result to obtain corrections t
Externí odkaz:
https://doaj.org/article/5e513d83bf624666818c912fe22956bb
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 8, Pp 1-39 (2018)
Abstract The exact 2-point function of certain physically motivated operators in SYK-like spin glass models is computed, bypassing the Schwinger-Dyson equations. The models possess an IR low energy conformal window, but our results are exact at all t
Externí odkaz:
https://doaj.org/article/e6016b4c532f4c04b110da25d9192af3
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 9, Pp 1-27 (2017)
Abstract The Thirring model with random couplings is a translationally invariant generalisation of the SYK model to 1+1 dimensions, which is tractable in the large N limit. We compute its two point function, at large distances, for any strength of th
Externí odkaz:
https://doaj.org/article/32985fd273b541538db7bb3244711973
Publikováno v:
Physical Review
We study the Lyapunov exponent $\lambda_L$ in quantum field theories with spacetime-independent disorder interactions. Generically $\lambda_L$ can only be computed at isolated points in parameter space, and little is known about the way in which chao
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 9, Pp 1-70 (2021)
Journal of High Energy Physics
Journal of High Energy Physics
We consider multi-energy level distributions in the SYK model, and in particular, the role of global fluctuations in the density of states of the SYK model. The connected contributions to the moments of the density of states go to zero as $N \to \inf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6d635283d17b7b09f6b66de3283514a
http://arxiv.org/abs/2104.03336
http://arxiv.org/abs/2104.03336