Search Results - "Klinkhamer, F."
-
1
IIB matrix model: Emergent spacetime from the master field
Published in Progress of theoretical and experimental physics (01-01-2021)“…We argue that the large-$N$ master field of the Lorentzian IIB matrix model can give the points and metric of a classical spacetime…”
Get full text
Journal Article -
2
IIB matrix model and regularized big bang
Published in Progress of theoretical and experimental physics (01-06-2021)“…The large-N master field of the Lorentzian IIB matrix model can, in principle, give rise to a particular degenerate metric relevant to a regularized big bang…”
Get full text
Journal Article -
3
Tetrads and q-Theory
Published in JETP letters (01-03-2019)“…As the microscopic structure of the deep relativistic quantum vacuum is unknown, a phenomenological approach ( q -theory) has been proposed to describe the…”
Get full text
Journal Article -
4
On the emergence of an expanding universe from a Lorentzian matrix model
Published in Progress of theoretical and experimental physics (01-10-2020)“…Abstract We present evidence that recent numerical results from the reduced classical equations of the Lorentzian IIB matrix model can be interpreted as…”
Get full text
Journal Article -
5
Dark matter from dark energy in q-theory
Published in JETP letters (2017)“…A constant (spacetime-independent) q -field may play a crucial role for the cancellation of Planck-scale contributions to the gravitating vacuum energy…”
Get full text
Journal Article -
6
Q-Field from a 4D Brane: Cosmological Constant Cancellation and Minkowski Attractor
Published in Letters in high energy physics (2022)“…A 4D-brane realization of q-theory has been proposed a few years ago. The present paper studies the corresponding late-time cosmology and establishes the…”
Get full text
Journal Article -
7
Relaxation of vacuum energy in q-theory
Published in Journal of experimental and theoretical physics (01-08-2017)“…The q -theory formalism aims to describe the thermodynamics and dynamics of the deep quantum vacuum. The thermodynamics leads to an exact cancellation of the…”
Get full text
Journal Article -
8
QCD-scale modified-gravity universe
Published in Advances in space research (2012)“…A possible gluon-condensate-induced modified-gravity model with f( R) ∝ ∣ R∣ 1/2 has been suggested previously. Here, a simplified version is presented using…”
Get full text
Journal Article -
9
Optical configurations for the core CXRS diagnostics for ITER
Published in Fusion engineering and design (01-10-2011)“…For the optical system of the core CXRS port plug several designs were developed in the last years. A survey is given of the three most relevant designs. The…”
Get full text
Journal Article Conference Proceeding -
10
Vacuum-defect wormholes and a mirror world
Published 09-08-2023“…Acta Phys. Pol. B 54, 7-A3 (2023) We have recently discovered a smooth vacuum-wormhole solution of the first-order equations of general relativity. Here, we…”
Get full text
Journal Article -
11
Defect wormhole: A traversable wormhole without exotic matter
Published 15-06-2023“…Acta Phys. Polon. B 54, 5-A3 (2023) We present a traversable-wormhole solution of the gravitational field equation of General Relativity without need of exotic…”
Get full text
Journal Article -
12
Emergent gravity from the IIB matrix model and cancellation of a cosmological constant
Published 11-05-2023“…Class. Quant. Grav. 40 (2023) 124001 We review a cosmological model where the metric determinant plays a dynamical role and present new numerical results on…”
Get full text
Journal Article -
13
Q-field from a 4D-brane: Cosmological constant cancellation and Minkowski attractor
Published 03-01-2023“…LHEP 2022 (2022) 312 A 4D-brane realization of $q$-theory has been proposed a few years ago. The present paper studies the corresponding late-time cosmology…”
Get full text
Journal Article -
14
Extension of unimodular gravity and the cosmological constant
Published 09-12-2022“…Phys. Rev. D 106, 124015 (2022) A new way is proposed to cancel the cosmological constant. The proposal involves the metric determinant acting as a type of…”
Get full text
Journal Article -
15
Causality and CPT violation from an Abelian Chern–Simons-like term
Published in Nuclear physics. B (23-07-2001)“…We study a class of generalized Abelian gauge field theories where CPT symmetry is violated by a Chern–Simons-like term which selects a preferred direction in…”
Get full text
Journal Article -
16
A first look at the bosonic master-field equation of the IIB matrix model
Published 03-11-2021“…Int. J. Mod. Phys. D 30 (2021) 2150105 The bosonic large-$N$ master field of the IIB matrix model can, in principle, give rise to an emergent classical…”
Get full text
Journal Article -
17
Solutions of the bosonic master-field equation from a supersymmetric matrix model
Published 29-10-2021“…Acta Phys. Pol. B 52, 1339 (2021) It has been argued that the bosonic large-$N$ master field of the IIB matrix model can give rise to an emergent classical…”
Get full text
Journal Article -
18
M-theory and the birth of the Universe
Published 23-07-2021“…Acta Phys. Pol. B 52, 1007 (2021) In this review article, we first discuss a possible regularization of the big bang curvature singularity of the standard…”
Get full text
Journal Article -
19
IIB matrix model and regularized big bang
Published 30-06-2021“…Prog Theor Exp Phys (2021) The large-$N$ master field of the Lorentzian IIB matrix model can, in principle, give rise to a particular degenerate metric…”
Get full text
Journal Article -
20
Overview on R&D and design activities for the ITER core charge exchange spectroscopy diagnostic system
Published in Fusion engineering and design (01-10-2011)“…The ITER core charge exchange recombination spectroscopy (core CXRS) diagnostic system is designed to provide experimental access to various measurement…”
Get full text
Journal Article Conference Proceeding