Results 131 to 140 of about 2,110,870 (239)
Krylov complexity for Jacobi coherent states
Journal of High Energy PhysicsWe develop computational tools necessary to extend the application of Krylov complexity beyond the simple Hamiltonian systems considered thus far in the literature.
S. Shajidul Haque +3 more
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Complexity and operator growth for quantum systems in dynamic equilibrium
Journal of High Energy PhysicsKrylov complexity is a measure of operator growth in quantum systems, based on the number of orthogonal basis vectors needed to approximate the time evolution of an operator.
Cameron Beetar +4 more
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Horizon entropy with loop quantum gravity methods
Physics Letters B, 2015 We show that the spherically symmetric isolated horizon can be described in terms of an SU(2) connection and an su(2)-valued one-form, obeying certain constraints.
Daniele Pranzetti, Hanno Sahlmann
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Relational Lorentzian Asymptotically Safe Quantum Gravity: Showcase Model
UniverseIn a recent contribution, we identified possible points of contact between the asymptotically safe and canonical approaches to quantum gravity. The idea is to start from the reduced phase space (often called relational) formulation of canonical quantum ...
Renata Ferrero, Thomas Thiemann
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Lattice Quantum Gravity from Stochastic 3-Geometries
, 1995 I propose the Langevin equation for 3-geometries in the Ashtekar's formalism to describe 4D Euclidean quantum gravity, in the sense that the corresponding Fokker-Planck hamiltonian recovers the hamiltonian in 4D quantum gravity exactly.
Nakazawa, N.
core +1 more source
European Physical Journal C: Particles and Fields, 2017 Applying the anholonomic frame deformation method, we construct various classes of cosmological solutions for effective Einstein–Yang–Mills–Higgs, and two measure theories.
Subhash Rajpoot, Sergiu I. Vacaru
doaj +1 more source
2D Quantum Gravity from Quantum Entanglement [PDF]
Physical Review Letters, 2011 4 pages, 3 ...
openaire +3 more sources
A study of the SYK2 model with twisted boundary conditions
Journal of High Energy PhysicsWe study a version of the 2-body Sachdev-Ye-Kitaev (SYK2) model whose complex fermions exhibit twisted boundary conditions on the thermal circle. As we show, this is physically equivalent to coupling the fermions to a 1-dimensional external gauge field A(
Jeff Murugan +2 more
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Quantum Riemannian Geometry and Black Holes
, 2006 Black Holes have always played a central role in investigations of quantum gravity. This includes both conceptual issues such as the role of classical singularities and information loss, and technical ones to probe the consistency of candidate theories ...
Bojowald, Martin
core
Collision-space-time: Unified quantum gravity
, 2019 We have recently presented a unified quantum gravity theory [1]. Here we extend on that work and present an even simpler version of that theory. For about hundred years, modern physics has not been able to build a bridge between quantum mechanics and ...
E. Haug
semanticscholar +1 more source