Search Results - "Yazdi, Yasaman K"
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Zero modes and entanglement entropy
Published in The journal of high energy physics (01-04-2017)“…A bstract Ultraviolet divergences are widely discussed in studies of entanglement entropy. Also present, but much less understood, are infrared divergences due…”
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Towards spacetime entanglement entropy for interacting theories
Published in The journal of high energy physics (01-11-2020)“…A bstract Entanglement entropy of quantum fields in gravitational settings is a topic of growing importance. This entropy of entanglement is conventionally…”
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3
Studies on the SJ vacuum in de Sitter spacetime
Published in The journal of high energy physics (01-07-2019)“…A bstract In this work we study the Sorkin-Johnston (SJ) vacuum in de Sitter spacetime for free scalar field theory. For the massless theory we find that the…”
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Accretion in Radiative Equipartition (AiRE) Disks
Published in The Astrophysical journal (01-07-2017)“…Standard accretion disk theory predicts that the total pressure in disks at typical (sub-)Eddington accretion rates becomes radiation pressure dominated…”
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A ground state for the causal diamond in 2 dimensions
Published in The journal of high energy physics (01-10-2012)“…A bstract We apply a recent proposal for a distinguished ground state of a quantum field in a globally hyperbolic spacetime to the free massless scalar field…”
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Everything You Always Wanted to Know About How Causal Set Theory Can Help with Open Questions in Cosmology, but Were Afraid to Ask
Published 25-11-2023“…Modern Physics Letters A (2023) 2330003 We briefly survey open questions in cosmology that either have been or could potentially be addressed with the help of…”
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Entanglement Entropy and Causal Set Theory
Published 27-12-2022“…We review a formulation of the entanglement entropy of a quantum scalar field in terms of its spacetime two-point correlation functions. We discuss…”
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Fluctuations and Correlations in Causal Set Theory
Published 03-07-2024“…We study the statistical fluctuations (such as the variance) of causal set quantities, with particular focus on the causal set action. To facilitate…”
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Aspects of Everpresent $\Lambda$ (II): Cosmological Tests of Current Models
Published 25-07-2023“…This paper investigates Everpresent $\Lambda$, a stochastic dark energy model motivated by causal set theory and unimodular gravity, and confronts it with two…”
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Aspects of Everpresent $\Lambda$ (I): A Fluctuating Cosmological Constant from Spacetime Discreteness
Published 07-04-2023“…JCAP10(2023)047 We provide a comprehensive discussion of the Everpresent $\Lambda$ cosmological model arising from fundamental principles in causal set theory…”
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On the (Non)Hadamard Property of the SJ State in a $1+1$D Causal Diamond
Published 20-12-2022“…2024 Class. Quantum Grav. 41 045007 The Sorkin-Johnston (SJ) state is a candidate physical vacuum state for a scalar field in a generic curved spacetime. It…”
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Lorentzian Spectral Geometry with Causal Sets
Published 05-08-2020“…2021 Class. Quantum Grav. 38 015011 We study discrete Lorentzian spectral geometry by investigating to what extent causal sets can be identified through a set…”
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Zero Modes and Entanglement Entropy
Published 28-04-2017“…JHEP 1704 (2017) 140 Ultraviolet divergences are widely discussed in studies of entanglement entropy. Also present, but much less understood, are infrared…”
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Insights on Entanglement Entropy in $1+1$ Dimensional Causal Sets
Published 10-11-2021“…2022 Class. Quantum Grav. 39 245004 Entanglement entropy in causal sets offers a fundamentally covariant characterisation of quantum field degrees of freedom…”
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15
Towards Spectral Geometry for Causal Sets
Published 09-04-2017“…Class. Quantum Grav. 34 094001, 2017 We show that the Feynman propagator (or the d'Alembertian) of a causal set contains the complete information about the…”
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Entanglement Entropy of Disjoint Spacetime Intervals in Causal Set Theory
Published 08-04-2022“…Class. Quantum Grav. 39 075017 (2022) A more complete understanding of entanglement entropy in a covariant manner could inform the search for quantum gravity…”
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Entanglement Entropy in Causal Set Theory
Published 02-02-2018“…Class. Quantum Grav. 35 074004 (2018) Entanglement entropy is now widely accepted as having deep connections with quantum gravity. It is therefore desirable to…”
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18
Towards Spacetime Entanglement Entropy for Interacting Theories
Published 06-05-2021“…J. High Energ. Phys. 2020, 114 (2020) Entanglement entropy of quantum fields in gravitational settings is a topic of growing importance. This entropy of…”
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19
Entanglement Entropy of Causal Set de Sitter Horizons
Published 04-03-2021“…Class. Quantum Grav. 38 115001 (2021) de Sitter cosmological horizons are known to exhibit thermodynamic properties similar to black hole horizons. In this…”
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Accretion in Radiative Equipartition (AiRE) Disks
Published 27-09-2017“…2017, ApJ, 843, 22 Standard accretion disk theory (Shakura & Sunyaev 1973) predicts that the total pressure in disks at typical (sub-)Eddington accretion rates…”
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