Results 121 to 130 of about 115,374 (223)

Light cone in a quantum spacetime

Physics Letters B, 2018
Noncommutative spacetimes are a proposed effective description of the low-energy regime of Quantum Gravity. Defining the microcausality relations of a scalar quantum field theory on the κ-Minkowski noncommutative spacetime allows us to define for the ...
Flavio Mercati, Matteo Sergola
doaj  

Translation-Invariant Noncommutative Renormalization

Symmetry, Integrability and Geometry: Methods and Applications, 2010
We review here the construction of a translation-invariant scalar model which was proved to be perturbatively renormalizable on Moyal space. Some general considerations on nonlocal renormalizability are given.
Adrian Tanasa
doaj   +1 more source

Entanglement Wedge Reconstruction via Universal Recovery Channels

Physical Review X, 2019
In the context of quantum theories of spacetime, one overarching question is how quantum information in the bulk spacetime is encoded holographically in boundary degrees of freedom.
Jordan Cotler, Patrick Hayden, Geoffrey Penington, Grant Salton, Brian Swingle, Michael Walter   +5 more
doaj   +1 more source

Exotic Galilean Symmetry and Non-Commutative Mechanics

Symmetry, Integrability and Geometry: Methods and Applications, 2010
Some aspects of the ''exotic'' particle, associated with the two-parameter central extension of the planar Galilei group are reviewed. A fundamental property is that it has non-commuting position coordinates.
Peter A. Horváthy, Luigi Martina, Peter C. Stichel   +2 more
doaj   +1 more source

Noncommutative field gas driven inflation

, 2008
We investigate early time inflationary scenarios in an Universe filled with a dilute noncommutative bosonic gas at high temperature. A noncommutative bosonic gas is a gas composed of bosonic scalar field with noncommutative field space on a commutative ...
Abraham J, Akofor E Balachandran A P Jo S G Joseph A Qureshi B A, Amilcar R Queiroz, Aschieri P, Aschieri P, Balachandran A P Queiroz A R Marques A M Teotonio-Sobrinho P, Brandenberger R H, Carmona J M, Francisco A Brito, Gibbons G W, Koh S, Koh S, Lizzi F, Luciano Barosi   +13 more
core   +1 more source

Emergent 4D Gravity from Matrix Models

, 2007
Recent progress in the understanding of gravity on noncommutative spaces is discussed. A gravity theory naturally emerges from matrix models of noncommutative gauge theory.
Douglas, Ishibashi, Rivelles, Sakharov, Seiberg, Steinacker, Szabo, Yang, Yang   +8 more
core   +1 more source

Towards an axiomatic formulation of noncommutative quantum field theory. II [PDF]

Nuclear Physics B, 2019
M. Chaichian, M. Mnatsakanova, Y. Vernov
semanticscholar   +1 more source

Space-Time Diffeomorphisms in Noncommutative Gauge Theories

Symmetry, Integrability and Geometry: Methods and Applications, 2008
In previous work [Rosenbaum M. et al., J. Phys. A: Math. Theor. 40 (2007), 10367–10382] we have shown how for canonical parametrized field theories, where space-time is placed on the same footing as the other fields in the theory, the representation of ...
L. Román Juarez, J. David Vergara, Marcos Rosenbaum   +2 more
doaj   +1 more source

On the M2-Brane Index on Noncommutative Crepant Resolutions. [PDF]

Lett Math Phys, 2022
Cirafici M.
europepmc   +1 more source

Renormalization of quantum field theories on noncommutative Bbb R^d, 1. Scalars [PDF]

, 2000
Iouri Chepelev, Radu Roiban
openalex   +1 more source