Zobrazeno 1 - 10
of 526
pro vyhledávání: '"T, Grosvenor"'
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 12, Pp 1-44 (2023)
Abstract We derive the action and symmetries of the bosonic sector of non-Lorentzian IIB supergravity by taking the non-relativistic string limit. We find that the bosonic field content is extended by a Lagrange multiplier that implements a restricti
Externí odkaz:
https://doaj.org/article/b7fb10c517684590b61cf6b67484436a
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 10, Pp 1-31 (2022)
Abstract We investigate how SL(2,ℤ) duality is realized in nonrelativistic type IIB superstring theory, which is a self-contained corner of relativistic string theory. Within this corner, we realize manifestly SL(2,ℤ)-invariant (p, q)-string acti
Externí odkaz:
https://doaj.org/article/bc873e3b0316447bb51b23981b8e290a
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 4, Pp 1-42 (2021)
Abstract We develop a new heat kernel method that is suited for a systematic study of the renormalization group flow in Hořava gravity (and in Lifshitz field theories in general). This method maintains covariance at all stages of the calculation, wh
Externí odkaz:
https://doaj.org/article/3335c0c625c64d31b636bb243be89023
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 10, Pp 1-38 (2020)
Abstract We study the quantum properties of a Galilean-invariant abelian gauge theory coupled to a Schrödinger scalar in 2+1 dimensions. At the classical level, the theory with minimal coupling is obtained from a null-reduction of relativistic Maxwe
Externí odkaz:
https://doaj.org/article/ed44f811bc5848958df30adf62d0a125
Publikováno v:
Frontiers in Physics, Vol 9 (2022)
There has been a surge of interest in effective non-Lorentzian theories of excitations with restricted mobility, known as fractons. Examples include defects in elastic materials, vortex lattices or spin liquids. In the effective theory novel coordina
Externí odkaz:
https://doaj.org/article/f25d3d114d104f3fa671fcc7b7739cca
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 1, Pp 1-21 (2019)
Abstract We construct an action for four-dimensional extended string Newton-Cartan gravity which is an extension of the string Newton-Cartan gravity that underlies nonrelativistic string theory. The action can be obtained as a nonrelativistic limit o
Externí odkaz:
https://doaj.org/article/e09158c08c2e4596adcfd448a2b97d21
Publikováno v:
SciPost Physics, Vol 12, Iss 3, p 081 (2022)
We explicitly construct the quantum field theory corresponding to a general class of deep neural networks encompassing both recurrent and feedforward architectures. We first consider the mean-field theory (MFT) obtained as the leading saddlepoint in
Externí odkaz:
https://doaj.org/article/4da9ae04912346f685123adb2103c6d3
Publikováno v:
SciPost Physics, Vol 12, Iss 1, p 041 (2022)
We investigate the analogy between the renormalization group (RG) and deep neural networks, wherein subsequent layers of neurons are analogous to successive steps along the RG. In particular, we quantify the flow of information by explicitly computin
Externí odkaz:
https://doaj.org/article/20487cf07bf1449aaa627b653dd18b9a
Publikováno v:
Physical Review Research, Vol 3, Iss 4, p 043186 (2021)
Low-energy dynamics of many-body fracton excitations necessary to describe topological defects should be governed by a novel type of hydrodynamic theory. We use a Poisson bracket approach to systematically derive hydrodynamic equations from conservat
Externí odkaz:
https://doaj.org/article/488694a122464d6d98ab716178f4c187
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 6, Pp 1-38 (2017)
Abstract We study quantum corrections to projectable Hořava gravity with z = 2 scaling in 2 + 1 dimensions. Using the background field method, we utilize a non-singular gauge to compute the anomalous dimension of the cosmological constant at one loo
Externí odkaz:
https://doaj.org/article/99995a65912e41028d5ef1bc9350f8f9