Results 91 to 100 of about 536 (174)

Spacetime Emergence: An (In)effective Story

Philosophy of Physics
Physicists and philosophers are increasingly prone to regarding our current physical theories as providing 'effective descriptions' of real-world systems. In the context of quantum gravity research, this fuels a common view that the classical spacetime theory of general relativity provides effective descriptions where it is successfully applied.
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Quantum corrections to the AdS bulk from a semiclassical description of D-branes

European Physical Journal C: Particles and Fields
We investigate the emergence of spacetime geometry within the AdS/CFT correspondence by explicitly incorporating quantum coherence effects arising from finite coherent superpositions of closed-string modes forming mesoscopic quantum D-branes.
Andrei T. Patrascu
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Inverse Hamiltonian reconstruction from gravitational energy density in curved spacetime

Nuclear Physics B
We present a general framework for reconstructing effective Hamiltonians from known gravitational energy density profiles in curved spacetime. Starting from local thermal equilibrium and Liouville dynamics, we establish an inverse procedure that relates ...
Davood Momeni
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Massive fields in AdS from constructive holography

Journal of High Energy Physics
Collective field theory offers a constructive framework for exploring the AdS/CFT duality. In this article, we focus on constructing rotations within the light-front quantized collective field theory for the full set of spatial coordinates in the dual ...
Robert de Mello Koch, Pratik Roy, Hendrik J. R. Van Zyl   +2 more
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Symplectic groupoids and Poisson electrodynamics

Journal of High Energy Physics
We develop a geometric approach to Poisson electrodynamics, that is, the semi-classical limit of noncommutative U(1) gauge theory. Our framework is based on an integrating symplectic groupoid for the underlying Poisson brackets, which we interpret as the
Vladislav G. Kupriyanov, Alexey A. Sharapov, Richard J. Szabo   +2 more
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Quantum spacetime imprints: the 24-cell, Standard Model symmetry and its flavor mixing

European Physical Journal C: Particles and Fields
In our previous work (Ali, Fortsch. Phys. 72(4), 2200210 (2024)), We outline an exploratory framework in which in which the 24-cell acts both as the quantum of spacetime and as a geometric representation of elementary particles. In this paper, we provide
Ahmed Farag Ali
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Real–Now–Front Cosmology: A Generative Framework for Spacetime, Expansion and Dark Matter

Reports in Advances of Physical Sciences
In this paper, we develop Real–Now–Front (RNF) cosmology, a generative framework in which spacetime arises through slice-by-slice alignment of a pre-geometric chronon substrate.
Bin Li
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Emerging Quantum Fields Embedded in the Emergence of Spacetime

, 2018
Based on a local causal model of the dynamics of curved discrete spacetime, a causal model of quantum field theory in curved discrete spacetime is described. On the elementary level, space(-time) is assumed to consists of interconnected space points. Each space point is connected to a small discrete set of neighboring space points. Density distribution
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Emergent spacetime from spatial energy potentiality: A loop-induced phase transition mechanism

Physics Letters B
We propose a concrete microscopic mechanism for the emergence of four-dimensional spacetime from a pre-temporal spatial configuration through quantum loop corrections, formalised as the Principle of Spatial Energy Potentiality (PSEP).
Farrukh A. Chishtie
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Emergence of Spacetime

Emergence of Spacetime
Classical matter generates classical spacetime. The generation is described by Einstein’s field equation. Classical matter emerges from microscopic levels through condensation of infinite number of quanta.
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