Results 161 to 170 of about 165,231 (345)

Strict renormalizability as a paradigm for fundamental physics

open access: yesJournal of High Energy Physics
An important theoretical achievement of the last century was the realization that strict renormalizability can be a powerful criterion to select Lagrangians in the framework of perturbative quantum field theory.
Luca Buoninfante
doaj   +1 more source

Bounding field excursions along null geodesics with applications to cosmology

open access: yesJournal of High Energy Physics
Scalar fields in theories of gravity often inhabit a moduli space of vacua, and coherent spatial or temporal variations in their expectation values can produce measurable gravitational effects.
Aidan Herderschee, Aron C. Wall
doaj   +1 more source

Universal Entanglement and an Information‐Complete Quantum Theory

open access: yesAdvanced Physics Research, EarlyView.
This Perspective summarize an informationcomplete quantum theory which describes a fully quantum world without any classical systems and concepts. Here spacetime/gravity, having to be a physical quantum system, universally entangles matter (matter fermions and their gauge fields) as an indivisible trinity, and encodes information‐complete physical ...
Zeng‐Bing Chen
wiley   +1 more source

Quantum-gravity effects on a Higgs-Yukawa model [PDF]

open access: green, 2016
Astrid Eichhorn   +2 more
openalex   +1 more source

Dynamics in canonical models of loop quantum gravity

open access: yes, 2019
In this thesis we consider the problem of dynamics in canonical loop quantum gravity, primarily in the context of deparametrized models, in which a scalar field is taken as a physical time variable for the dynamics of the gravitational field. The dynamics of the quantum states of the gravitational field is then generated directly by a physical ...
openaire   +2 more sources

Quantifying the Impact of Relativistic Precession on Tidal Disruption Event Light Curves

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT The tidal field of a black hole can turn a star into a gas stream whose orbit can precess, especially if the a black hole is rapidly spinning. In this work, we investigate the impact of precession on the light curves of tidal disruption events (TDE).
Diego Calderón   +4 more
wiley   +1 more source

Gravity from quantum mechanics of finite matrices

open access: yesJournal of High Energy Physics
We revisit the Berenstein-Maldacena-Nastase (BMN) conjecture relating M-theory on a PP-wave background and Matrix Quantum Mechanics (MQM) of N × N matrices.
Shota Komatsu   +5 more
doaj   +1 more source

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