Zobrazeno 1 - 10
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pro vyhledávání: '"A. Magan"'
In this paper, we present a quantitative holographic relation between a microscopic measure of randomness and the geometric length of the wormhole in the black hole interior. To this end, we perturb an AdS black hole with Brownian semiclassical sourc
Externí odkaz:
http://arxiv.org/abs/2412.08693
Recent proposals equate the size of Einstein-Rosen bridges in JT gravity to spread complexity of a dual, double-scaled SYK theory (DSSYK). We show that the auxiliary ``chord basis'' of these proposals is an extrapolation from a sub-exponential part o
Externí odkaz:
http://arxiv.org/abs/2412.02038
Autor:
Magan, Javier M., Wu, Qingyue
There are two types of quantum chaos: eigenbasis chaos and spectral chaos. The first type controls the early-time physics, e.g. the thermal relaxation and the sensitivity of the system to initial conditions. It can be traced back to the Eigenstate Th
Externí odkaz:
http://arxiv.org/abs/2411.08186
Autor:
Benedetti, Valentin, Casini, Horacio, Kawahigashi, Yasuyuki, Longo, Roberto, Magan, Javier M.
We review the physical meaning of modular invariance for unitary conformal quantum field theories in d=2. For QFT models, while T invariance is necessary for locality, S invariance is not mandatory. S invariance is a form of completeness of the theor
Externí odkaz:
http://arxiv.org/abs/2408.04011
We refine and extend a recent construction of sets of black hole microstates with semiclassical interiors that span a Hilbert space of dimension $e^S$, where $S$ is the black hole entropy. We elaborate on the definition and properties of microstates
Externí odkaz:
http://arxiv.org/abs/2401.08775
Autor:
Emparan, Roberto, Magan, Javier M.
Publikováno v:
JHEP03(2024)078
A longstanding enigma within AdS/CFT concerns the entanglement entropy of holographic quantum fields in Rindler space. The vacuum of a quantum field in Minkowski spacetime can be viewed as an entangled thermofield double of two Rindler wedges at a te
Externí odkaz:
http://arxiv.org/abs/2312.06803
Quantum chaotic systems are conjectured to display a spectrum whose fine-grained features (gaps and correlations) are well described by Random Matrix Theory (RMT). We propose and develop a complementary version of this conjecture: quantum chaotic sys
Externí odkaz:
http://arxiv.org/abs/2312.03848
Evaluation of changes in fixed flexion deformity following medial unicompartmental knee arthroplasty
Autor:
Warran Wignadasan, Ahmed Magan, Babar Kayani, Andreas Fontalis, Alastair Chambers, Vishal Rajput, Fares S. Haddad
Publikováno v:
Bone & Joint Open, Vol 5, Iss 11, Pp 992-998 (2024)
Aims: While residual fixed flexion deformity (FFD) in unicompartmental knee arthroplasty (UKA) has been associated with worse functional outcomes, limited evidence exists regarding FFD changes. The objective of this study was to quantify FFD changes
Externí odkaz:
https://doaj.org/article/f579824e8e094f59b47b497bfa4316b6
The Adler-Bell-Jackiw anomaly determines the violation of chiral symmetry when massless fermions are coupled to an abelian gauge field. In its seminal paper, Adler noticed that a modified chiral U(1) symmetry could still be defined, at the expense of
Externí odkaz:
http://arxiv.org/abs/2309.03264
We investigate the complexity of states and operators evolved with the modular Hamiltonian by using the Krylov basis. In the first part, we formulate the problem for states and analyse different examples, including quantum mechanics, two-dimensional
Externí odkaz:
http://arxiv.org/abs/2306.14732