Results 41 to 50 of about 876,408 (341)

Emergence of string-like physics from Lorentz invariance in loop quantum gravity [PDF]

open access: yes, 2014
We consider a quantum field theory on a spherically symmetric quantum space time described by loop quantum gravity. The spin network description of space time in such a theory leads to equations for the quantum field that are discrete.
Gambini, Rodolfo, Pullin, Jorge
core   +3 more sources

Quantum Field Theory of Fluids [PDF]

open access: yesPhysical Review Letters, 2015
5 pages, 2 figures and 1 table. v2: Added references.
Gripaios, Ben, Sutherland, Dave
openaire   +3 more sources

Survey of mathematical foundations of QFT and perturbative string theory [PDF]

open access: yes, 2011
Recent years have seen noteworthy progress in the mathematical formulation of quantum field theory and perturbative string theory. We give a brief survey of these developments.
Sati, Hisham, Schreiber, Urs
core   +10 more sources

K-theory in quantum field theory [PDF]

open access: yesCurrent Developments in Mathematics, 2001
We survey three different ways in which K-theory in all its forms enters quantum field theory. In Part 1 we give a general argument which relates topological field theory in codimension two with twisted K-theory, and we illustrate with some finite models.
openaire   +2 more sources

A spin-statistics theorem for quantum fields on curved spacetime manifolds in a generally covariant framework [PDF]

open access: yes, 2001
A model-independent, locally generally covariant formulation of quantum field theory over four-dimensional, globally hyperbolic spacetimes will be given which generalizes similar, previous approaches.
Verch, Rainer
core   +2 more sources

Quantum Spins and Quantum Links: The D-Theory Approach to Field Theory [PDF]

open access: yes, 1998
A new non-perturbative approach to quantum field theory is proposed. Instead of performing a path integral over configurations of classical fields, D-theory works with discrete quantized variables. Classical spin fields are replaced by quantum spins, and
Affleck   +34 more
core   +2 more sources

From quantum field theory to quantum mechanics

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
The purpose of this article is to construct an explicit relation between the field operators in Quantum Field Theory and the relevant operators in Quantum Mechanics for a system of N identical particles, which are the symmetrised functions of the ...
Nuno Barros e Sá, Cláudio Gomes
doaj   +1 more source

Quantum field theory in (0 + 1) dimensions [PDF]

open access: yes, 2007
We show that many of the key ideas of quantum field theory can be illustrated simply and straightforwardly by using toy models in (0 + 1) dimensions.
Boozer, A. D.
core   +1 more source

Quantum Field Theory in Categorical Quantum Mechanics [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2019
We use tools from non-standard analysis to formulate the building blocks of quantum field theory within the framework of categorical quantum mechanics.
Stefano Gogioso, Fabrizio Genovese
doaj   +1 more source

Stabilized Intermediate Phase Via Pseudo‐Halide Anions Toward Highly Efficient and Light‐Soaking Stable Perovskite Solar Cells

open access: yesAdvanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
The formate pseudo‐halide anion is strategically introduced at the buried interface to stabilize the intermediate phases formed during perovskite crystallization. The controlled crystallization enhances crystallinity and alleviates tensile strain, eliminating residual PbI2 near the buried interface.
Jongdeuk Seo   +12 more
wiley   +1 more source

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