Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Diana Vaman"'
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
We study the effect of compact extra dimensions on the gravitational wave luminosity and waveform. We consider a toy model, with a compactified fifth dimension, and matter confined on a brane. We work in the context of five dimensional ($5d$) general
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73b54f6638a9be8a6ce9266eef7b82f7
http://arxiv.org/abs/2004.03051
http://arxiv.org/abs/2004.03051
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
Publikováno v:
Physical Review B. 98
In past work we introduced a method which allows for exact computations of entanglement Hamiltonians. The method relies on computing the resolvent for the projected (on the entangling region) Green's function using a solution to the Riemann-Hilbert p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c979928e082227aa81f3db99999c5682
https://doi.org/10.1103/physrevb.98.035134
https://doi.org/10.1103/physrevb.98.035134
Publikováno v:
Physical Review
We consider a theory of scalars minimally coupled to an auxiliary background metric. The theory is generally covariant and subject to the constraint of vanishing energy-momentum tensor. Eliminating the auxiliary metric leads to a reparametrization in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d264e4af249bec14674cb811d083a44b
http://arxiv.org/abs/1710.09367
http://arxiv.org/abs/1710.09367
Publikováno v:
Physical Review Letters. 119
In this Letter we study the effect of topological zero modes on entanglement Hamiltonians and entropy of free chiral fermion systems in (1+1)d. We show how Riemann-Hilbert solutions combined with finite rank perturbation theory allow us to obtain exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::298c4d5a46a028888e9554910cc433d0
https://doi.org/10.1103/physrevlett.119.120401
https://doi.org/10.1103/physrevlett.119.120401
Publikováno v:
Journal of High Energy Physics
We propose a method of computing one-loop determinants in black hole spacetimes (with emphasis on asymptotically anti-de Sitter black holes) that may be used for numerics when completely-analytic results are unattainable. The method utilizes the expr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa357acf2cfb9b965b817dc4f36efd21
https://doi.org/10.1007/jhep07(2016)032
https://doi.org/10.1007/jhep07(2016)032
Publikováno v:
Classical and Quantum Gravity. 24:1115-1143
We classify the supersymmetric vacua of N=4, d=5 supergravity in terms of G-structures. We identify three classes of solutions: with R^3, SU(2) and generic SO(4) structure. Using the Killing spinor equations, we fully characterize the first two class
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f04421135e5e9e9155a4a015b166de07
https://doi.org/10.1088/0264-9381/24/5/006
https://doi.org/10.1088/0264-9381/24/5/006
Autor:
Diana Vaman, James T. Liu
Publikováno v:
Physics Letters B. 642:411-419
We continue our previous analysis (hep-th/0412045) of 1/2 BPS solutions to minimal 6d supergravity of bubbling form. We show that, by turning on an axion field in the T^2 torus reduction, the constraint F \wedge F, present in the case of an S^1 x S^1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b31a32681475ef759197116699fe064c
https://doi.org/10.1016/j.physletb.2006.09.059
https://doi.org/10.1016/j.physletb.2006.09.059
Publikováno v:
Nuclear Physics B. 739:285-310
We extend the construction of bubbling 1/2 BPS solutions of Lin, Lunin and Maldacena (H. Lin, O. Lunin, J. Maldacena, JHEP 0410 (2004) 025, hep-th/0409174 ) in two directions. First we enquire whether bubbling 1/2 BPS solutions can be constructed in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44164743951dbd200ee7a6cb10708e5e
https://doi.org/10.1016/j.nuclphysb.2005.12.026
https://doi.org/10.1016/j.nuclphysb.2005.12.026