Results 51 to 60 of about 166,290,583 (305)

On 2D quantum gravity coupled to a σ-model [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 1996
This contribution is a review of the method of isomonodromic quantization of dimensionally reduced gravity. Our approach is based on the complete separation of variables in the isomonodromic sector of the model and the related ``two-time" Hamiltonian structure.
Korotkin, D., Nicolai, H., Samtleben, H.
openaire   +4 more sources

From Quantum Codes to Gravity: A Journey of Gravitizing Quantum Mechanics

open access: yes, 2021
In this note, I review a recent approach to quantum gravity that “gravitizes” quantum mechanics by emerging geometry and gravity from complex quantum states.
Chun-Jun Cao
core   +1 more source

Time in quantum gravity [PDF]

open access: yes, 2012
Quantum gravity--the marriage of quantum physics with general relativity--is bound to contain deep and important lessons for the nature of physical time.
Vistarini, Tiziana   +5 more
core   +1 more source

Baryogenesis in models with a low quantum gravity scale [PDF]

open access: yesPhysical Review D, 1999
We make generic remarks about baryogenesis in models where the scale $M_s$ of quantum gravity is much below the Planck scale. These correspond to M-theory vacua with a large volume for the internal space. Baryogenesis is a challenge, particularly for $M_s \lappeq 10^5$ GeV, because there is an upper bound on the reheat temperature of the Universe, and ...
Benakli, Karim, Davidson, Sacha
openaire   +2 more sources

UNITARY MATRIX MODELS AND 2D QUANTUM GRAVITY [PDF]

open access: yesModern Physics Letters A, 1992
The KdV and modified KdV integrable hierarchies are shown to be different descriptions of the same 2D gravitational system — open-closed string theory. Non-perturbative solutions of the multicritical unitary matrix models map to non-singular solutions of the 'renormalization group' equation for the string susceptibility, [Formula: see text].
Dalley, S.   +3 more
openaire   +2 more sources

Testing a (Stringy) Model of Quantum Gravity [PDF]

open access: yes, 2001
I discuss a specific model of space-time foam, inspired by the modern non-perturbative approach to string theory (D-branes). The model views our world as a three brane, intersecting with D-particles that represent stringy quantum gravity effects, which can be real or virtual.
openaire   +2 more sources

A Matrix Model for Flat Space Quantum Gravity

open access: yesJournal of High Energy Physics, 2023
Abstract We take a step towards the non-perturbative description of a two-dimensional dilaton-gravity theory which has a vanishing cosmological constant and contains black holes. This is done in terms of a double-scaled Hermitian random matrix model which non-perturbatively computes the partition function for the asymptotic Bondi ...
Kar, Arjun   +3 more
openaire   +4 more sources

A new class of group field theories for 1st order discrete quantum gravity [PDF]

open access: yes, 2008
Group Field Theories, a generalization of matrix models for 2d gravity, represent a 2nd quantization of both loop quantum gravity and simplicial quantum gravity.
Afd Theoretical Physics (ITF)   +3 more
core  

One‐Step Curcumin‐Mediated Multiphoton Lithography for Bioactive 3D Scaffolds

open access: yesAdvanced Functional Materials, EarlyView.
Curcumin‐mediated multiphoton lithography enables one‐step fabrication of highly architected complex gelatin methacryloyl scaffolds by exploiting curcumin as a multifunctional bioactive photoinitiator. The resulting 3D structures support mesenchymal stem cell adhesion, proliferation, and migration, while exhibiting dual antibacterial activity through ...
Myrto Charitaki   +7 more
wiley   +1 more source

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

open access: yesAdvanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan   +6 more
wiley   +1 more source

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