Results 61 to 70 of about 3,508 (162)
, 2014 The causal dynamical triangulations approach aims to construct a quantum theory of gravity as the continuum limit of a lattice-regularized model of dynamical geometry. A renormalization group scheme--in concert with finite size scaling analysis--is essential to this aim. Formulating and implementing such a scheme in the present context raises novel and
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Quantizing Carrollian field theories
Journal of High Energy PhysicsCarrollian field theories have recently emerged as a candidate dual to flat space quantum gravity. We carefully quantize simple two-derivative Carrollian theories, revealing a strong sensitivity to the ultraviolet. They can be regulated upon being placed
Jordan Cotler +5 more
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Wigner negativity, random matrices and gravity
Journal of High Energy PhysicsGiven a choice of an ordered, orthonormal basis for a D-dimensional Hilbert space, one can define a discrete version of the Wigner function — a quasi-probability distribution which represents any quantum state as a real, normalized function on a discrete
Ritam Basu +5 more
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Complexity growth and the Krylov-Wigner function
Journal of High Energy PhysicsFor any state in a D-dimensional Hilbert space with a choice of basis, one can define a discrete version of the Wigner function — a quasi-probability distribution which represents the state on a discrete phase space.
Ritam Basu +3 more
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Physical Review ResearchInspired by recent advances in observational astrophysics and continued explorations in the field of analog gravity, we discuss the prospect of simulating models of cosmology within the context of synthetic mechanical lattice experiments. We focus on the
Brendan Rhyno +4 more
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Reconceptualizing Time, Gravity, and Forces through a Discrete Wave-Lattice Model
Amid persistent failures to reconcile quantum mechanics and gravity, Quantum Cell Theory (QCT) ventures a radically fresh vision of spacetime: a discrete, infinitely compressible wave-lattice in which time, matter, and forces emerge from threshold-based compression events.
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Hofstadter’s butterfly in AdS3 black holes
Journal of High Energy PhysicsWe derive the reduced Dirac Hamiltonian on the non-rotating BTZ background and use its redshift structure to construct a gauge-covariant single-band lattice model on the constant-time BTZ cylinder.
Kazuki Ikeda, Yaron Oz
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Diffeomorphism invariant tensor networks for 3d gravity
Journal of High Energy PhysicsTensor networks prepare states which share many features of states in quantum gravity. However, standard constructions are not diffeomorphism invariant and do not support an algebra of non-commuting area operators.
Vijay Balasubramanian, Charlie Cummings
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The Standard Model describes what particles do, but not why they exist. Parameters like the Higgs Mass (125 GeV) are manual inputs. The Selection-Stitch Model (SSM) derives these parameters from geometry. By modeling the vacuum as a K= 12 Cuboctahedral Lattice, we derive the fundamental Lagrangians (Dirac, Yang-Mills) as the elastic limits of the ...
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Geometry induced chiral transport and entanglement in AdS 2 background
Journal of High Energy PhysicsWe study the real-time chiral dynamics of Dirac fermions in AdS2 and AdS2 black hole backgrounds. The spacetime curvature generates a spin connection term, acting as an effective magnetic field and a position-dependent chiral chemical potential.
Kazuki Ikeda, Yaron Oz
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