Zobrazeno 1 - 10
of 1 389
pro vyhledávání: '"Random systems"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 11, Pp 1-43 (2024)
Abstract Random magnetic field configurations are ubiquitous in nature. Such fields lead to a variety of dynamical phenomena, including localization and glassy physics in some condensed matter systems and novel transport processes in astrophysical sy
Externí odkaz:
https://doaj.org/article/04374d0a10f548608c6a99286027ffd6
Autor:
Takanori Anegawa, Ryota Watanabe
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 11, Pp 1-29 (2024)
Abstract We investigate Krylov complexity of the fermion chain operator which consists of multiple Majorana fermions in the double-scaled SYK (DSSYK) model with finite temperature. Using the fact that Krylov complexity is computable from two-point fu
Externí odkaz:
https://doaj.org/article/4fbff276a15f47479997ba9146b6bad6
Autor:
Kazumi Okuyama
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-14 (2024)
Abstract We consider the baby universe operator B a $$ {\mathcal{B}}_a $$ in the double-scaled SYK (DSSYK) model, which creates a baby universe of size a. We find that B a $$ {\mathcal{B}}_a $$ is written in terms of the transfer matrix T, and vice v
Externí odkaz:
https://doaj.org/article/b34b070d810a4ea6bde0d19dbf8a1c99
Autor:
Yannick Mvondo-She
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-19 (2024)
Abstract We use a statistical model to discuss nonequilibrium fragmentation phenomena taking place in the stochastic dynamics of the log sector in log gravity. From the canonical Gibbs model, a combinatorial analysis reveals an important aspect of th
Externí odkaz:
https://doaj.org/article/5fcb7227b30f4c17a1b43086724343fb
Autor:
Alexey Milekhin, Jiuci Xu
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-22 (2024)
Abstract We revisit Brownian Sachdev-Ye-Kitaev model and argue that it has emergent energy conservation overlooked in the literature before. We solve this model in the double-scaled regime and demonstrate hyperfast scrambling, exponential decay of co
Externí odkaz:
https://doaj.org/article/9809336284434305ae5f27f403b9ca6d
Autor:
Ryota Watanabe
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-15 (2024)
Abstract We consider the double scaling limit of a model of Pauli spin operators recently studied in Hanada et al. [1] and evaluate the moments of the Hamiltonian by the chord diagrams. We find that they coincide with those of the double scaled SYK m
Externí odkaz:
https://doaj.org/article/d54c03c05bcf413b909bda7d0724aca9
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-46 (2024)
Abstract We formulate a geometric measurement theory of dynamical classical systems possessing both continuous and discrete degrees of freedom. The approach is covariant with respect to choices of clocks and naturally incorporates laboratories. The l
Externí odkaz:
https://doaj.org/article/d4c8faecce6f43a1b9e10b184525b2c8
Autor:
Siddharth Jindal, Pavan Hosur
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-59 (2024)
Abstract The eigenstate thermalization hypothesis (ETH) is the leading conjecture for the emergence of statistical mechanics in generic isolated quantum systems and is formulated in terms of the matrix elements of operators. An analog known as the er
Externí odkaz:
https://doaj.org/article/53eb0418928e4295a007f7a0d7883ef1
Autor:
Federico Camia, Yu Feng
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-25 (2024)
Abstract It is believed that the large-scale geometric properties of two-dimensional critical percolation are described by a logarithmic conformal field theory, but it has been challenging to exhibit concrete examples of logarithmic singularities and
Externí odkaz:
https://doaj.org/article/cb852ebfdce146f991ac70b0e19e3d0f
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-49 (2024)
Abstract We consider N $$ \mathcal{N} $$ = 2, 4 supersymmetric SYK models that have a peculiar low energy behavior, with the entropy going like S = S 0 + (constant)T a , where a ≠ 1. The large N equations for these models are a generalization of eq
Externí odkaz:
https://doaj.org/article/31bb0e267d164b07a68790e499739602