Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Joshua Erlich"'
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 3, Pp 1-22 (2017)
Abstract A constraint of vanishing energy-momentum tensor is motivated by a variety of perspectives on quantum gravity. We demonstrate in a concrete example how this constraint leads to a metric-independent theory in which quantum gravity emerges as
Externí odkaz:
https://doaj.org/article/02c33b2f302e4c098cd26d74f3b2f831
Autor:
Joshua Erlich
Publikováno v:
International Journal of Modern Physics D. 30
It is possible that both the classical description of spacetime and the rules of quantum field theory emerge from a more-fundamental structure of physical law. Pregeometric frameworks transfer some of the puzzles of quantum gravity to a semiclassical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91635089b01f49d70e527e5edb8ab6a2
https://doi.org/10.1142/s0218271821420189
https://doi.org/10.1142/s0218271821420189
Publikováno v:
Classical and Quantum Gravity. 38:095008
We explore a background-independent theory of composite gravity. The vacuum expectation value of the composite metric satisfies Einstein's equations (with corrections) as a consistency condition, and selects the vacuum spacetime. A gravitational inte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b10a3ec150a1d284b905ef110cfa5d4d
https://doi.org/10.1088/1361-6382/abefbd
https://doi.org/10.1088/1361-6382/abefbd
We present a metric-independent, diffeomorphism-invariant model with interacting fermions that contains a massless composite graviton in its spectrum. The model is motivated by the supersymmetric D-brane action, modulated by a fermion potential. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7158c5cb8ff127877c2319e03c3416a
http://arxiv.org/abs/1812.08201
http://arxiv.org/abs/1812.08201
Field theories that are generally covariant but nongravitational at tree level typically give rise to an emergent gravitational interaction whose strength depends on a physical regulator. We consider emergent gravity models in which scalar fields ass
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::356cc171878bf606e56434779c0e2702
Autor:
Joshua Erlich
Publikováno v:
Contemporary Physics. 56:159-171
Holographic QCD is an extra-dimensional approach to modeling hadrons, the bound states of the strong interactions. In holographic models, the extra spatial dimension creates a waveguide for fields, and the discrete towers of modes propagating in that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffb80baa9b85f5a2ad64e85b997e295f
https://doi.org/10.1080/00107514.2014.942079
https://doi.org/10.1080/00107514.2014.942079
Publikováno v:
Orbit. 32:20-26
Success rates for endoscopic and external dacryocystorhinostomy vary widely (external 70-95%; endonasal 59-99%). We investigated surgical preferences and reported success rates in dacryocystorhinostomy amongst American Society of Ophthalmic Plastic a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26bb93fb5bb72bf36babfbdda081f800
https://doi.org/10.3109/01676830.2012.747211
https://doi.org/10.3109/01676830.2012.747211
Autor:
Joshua Erlich
Publikováno v:
Few-Body Systems. 52:195-202
Holographic QCD is an extra-dimensional approach to modeling QCD resonances and their interactions. Holographic models encode information about chiral symmetry breaking, Weinberg sum rules, vector meson dominance, and other phenomenological features
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5099ff30485799986e24e40e562dc45b
https://doi.org/10.1007/s00601-011-0292-z
https://doi.org/10.1007/s00601-011-0292-z
Autor:
Joshua Erlich
Publikováno v:
Classical and Quantum Gravity. 35:245005
We present a stochastic framework for emergent quantum gravity coupled to matter. The Hamiltonian constraint in diffeomorphism-invariant theories demands the identification of a clock relative to which dynamics may be defined, and other degrees of fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47716578fe66159dfb06c77f41bbe450
https://doi.org/10.1088/1361-6382/aaeb55
https://doi.org/10.1088/1361-6382/aaeb55
Publikováno v:
Physical Review D. 91
We describe a hybrid axion-monodromy inflation model motivated by the Dante's Inferno scenario. In Dante's Inferno, a two-field potential features a stable trench along which a linear combination of the two fields slowly rolls, rendering the dynamics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b8e9160da7471bbc428601fae0fd2b8
https://doi.org/10.1103/physrevd.91.043512
https://doi.org/10.1103/physrevd.91.043512