Τμήμα Φυσικής / Department of Physics
Recent Submissions
-
Article
Closed FRW holography: a time-dependent ER=EPR realization
(Springer Nature, 2024-05-17)We extend a recent de Sitter holographic proposal and entanglement entropy prescription to generic closed FRW cosmologies in arbitrary dimensions, and propose that for large classes of bouncing and Big Bang/Big Crunch ...
-
Conference Object
Scattering, IR dynamics and entanglement
(Sissa Medialab srl, 2023-11-08)We consider scattering processes in perturbative QED and compute the entanglement entropy between the hard and the soft particles in the final state. The leading perturbative entanglement entropy diverges logarithmically ...
-
Book Chapter
Leptogenesis and Neutrino Masses in an Inflationary SUSY Pati-Salam Model
(InTech, 2012-11-12)
-
Article
Comments on the entropic gravity proposal
(Springer, 2018-08-06)Explicit tests are presented of the conjectured entropic origin of the gravitational force. The gravitational force on a test particle in the vicinity of the horizon of a large Schwarzschild black hole in arbitrary spacetime ...
-
Article
Liouville quantum gravity
(Elsevier, 2020-01-06)We define a three-dimensional quantum theory of gravity as the holographic dual of the Liouville conformal field theory. The theory is consistent and unitary by definition. The corresponding theory of gravity with negative ...
-
Article
IR dynamics and entanglement entropy
(American Physical Society, 2020-03-16)We consider scattering of Faddeev-Kulish electrons in QED and study the entanglement between the hard and soft particles in the final state at the perturbative level. The soft photon spectrum naturally splits into two ...
-
Article
Soft photon radiation and entanglement
(Springer, 2021-08-18)We study the entanglement between soft and hard particles produced in generic scattering processes in QED. The reduced density matrix for the hard particles, obtained via tracing over the entire spectrum of soft photons, ...
-
Article
Wavefunction of the universe: Reparametrization invariance and field redefinitions of the minisuperspace path integral
(Elsevier, 2021-11-03)We consider the Hartle–Hawking wavefunction of the universe defined as a Euclidean path integral that satisfies the “no-boundary proposal.” We focus on the simplest minisuperspace model that comprises a single scale factor ...
-
Article
Probability distribution for the quantum universe
(Springer, 2021-12-22)We determine the inner product on the Hilbert space of wavefunctions of the universe by imposing the Hermiticity of the quantum Hamiltonian in the context of the minisuperspace model. The corresponding quantum probability ...
-
Article
Gauge Fixing and Field Redefinitions of the Hartle-Hawking Wavefunction Path Integral
(Andromeda Proceedings, 2021)We review some recent results concerning the Hartle-Hawking wavefunction of the universe. We focus on pure Einstein theory of gravity in the presence of a positive cosmological constant. We carefully implement the gauge-fixing ...
-
Article
Holographic observables at large d
(American Physical Society, 2022-01-12)We study holographically nonlocal observables in field theories at finite temperature and in the large d limit. These include the Wilson loop, the entanglement entropy, as well as an extension to various dual extremal ...
-
Article
A unimodular-like string effective description
(Elsevier, 2023-04-14)We show that vanishing of the sigma-model beta-functions for the metric gμν , antisymmetric tensor Bμν and dilaton Phi of any string-theory model in D dimensions at tree level can be obtained from a universal effective ...
-
Article
Wavefunction of the universe: Diffeomeorphism invariance and field redefinitions
(Proceedings of Science (SISSA), 2022-11-23)We review some recent results concerning the Hartle-Hawking wavefunction of the universe. We focus on pure Einstein theory of gravity in the presence of a positive cosmological constant. We carefully implement the gauge-fixing ...
-
Article
Bridging the static patches: de Sitter holography and entanglement
(Springer, 2023-08-14)In the context of de Sitter static-patch holography, two prescriptions have been put forward for holographic entanglement entropy computations, the monolayer and bilayer proposals. In this paper, we reformulate both ...
-
Article
Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC
(2010)Results on two-particle angular correlations for charged particles emitted in proton-proton collisions at center-of-mass energies of 0.9, 2.36, and 7TeV are presented, using data collected with the CMS detector over a broad ...
-
Article
Constraining Gluon Distributions in Nuclei Using Dijets in Proton-Proton and Proton-Lead Collisions at sNN =5.02 TeV
(2018)The pseudorapidity distributions of dijets as functions of their average transverse momentum (pTave) are measured in proton-lead (pPb) and proton-proton (pp) collisions. The data samples were collected by the CMS experiment ...
-
Doctoral Thesis
Ultrafast carrier dynamics and transport properties in semiconducting nanowires
(University of Cyprus, Department of Physics, 2012)
-
Book
Ταξίδι στη μεγάλη αρχέγονη έκρηξη (Big Bang) η εξέλιξη του σύμπαντος υπό το φώς της πυρηνικής και σωματιδιακής φυσικής
([Εργαστήριο Πυρηνικής Φυσικής. Πανεπιστήμιο Κύπρου], 2002)
-
Doctoral Thesis
Higher order perturbative calculations in strong interaction physics with improved discretized actions for quarks and gluons
(University of Cyprus, Department of Physics, 2008)
-
Book
Το κενό που κοχλάζει το κενό ως έννοια δυναμική στον σύγχρονο πολιτισμό
(Δίαυλος, 1999)