Results 41 to 50 of about 1,977,305 (306)
On the quantum field theory of the gravitational interactions [PDF]
Journal of High Energy Physics, 2017 We study the main options for a unitary and renormalizable, local quantum field theory of the gravitational interactions. The first model is a Lee-Wick superrenormalizable higher-derivative gravity, formulated as a nonanalytically Wick rotated Euclidean ...
D. Anselmi
semanticscholar +1 more source
Quantum Spins and Quantum Links: The D-Theory Approach to Field Theory [PDF]
, 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
Quantum field theory of X-cube fracton topological order and robust degeneracy from geometry [PDF]
, 2017 We propose a quantum field theory description of the X-cube model of fracton topological order. The field theory is not (and cannot be) a topological quantum field theory (TQFT), since unlike the X-cube model, TQFTs are invariant (i.e.
K. Slagle, Yong Baek Kim
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QUANTUM GROUPS AND FIELD THEORY [PDF]
Modern Physics Letters A, 2000 When the symmetry of a physical theory describing a finite system is deformed by replacing its Lie group by the corresponding quantum group, the operators and state function will lie in a new algebra describing new degrees of freedom. If the symmetry of a field theory is deformed in this way, the enlarged state space will again describe additional ...
openaire +4 more sources
Quantum theory of noncommutative fields [PDF]
Journal of High Energy Physics, 2003 Generalizing the noncommutative harmonic oscillator construction, we propose a new extension of quantum field theory based on the concept of "noncommutative fields". Our description permits to break the usual particle-antiparticle degeneracy at the dispersion relation level and introduces naturally an ultraviolet and an infrared cutoff ...
J. M. Carmona +3 more
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Beyond Order: Perspectives on Leveraging Machine Learning for Disordered Materials
Advanced Engineering Materials, EarlyView.This article explores how machine learning (ML) revolutionizes the study and design of disordered materials by uncovering hidden patterns, predicting properties, and optimizing multiscale structures. It highlights key advancements, including generative models, graph neural networks, and hybrid ML‐physics methods, addressing challenges like data ...
Hamidreza Yazdani Sarvestani +4 more
wiley +1 more source
Quantum state diffusion, measurement and second quantization [PDF]
, 1999 Realistic dynamical theories of measurement based on the diffusion of quantum states are nonunitary, whereas quantum field theory and its generalizations are unitary.
Gisin +7 more
core +2 more sources
Hyperfunction quantum field theory [PDF]
Communications in Mathematical Physics, 1976 The quantum field theory in terms of Fourier hyperfunctions is constructed. The test function space for hyperfunctions does not containC∞ functions with compact support. In spite of this defect the support concept ofH-valued Fourier hyperfunctions allows to formulate the locality axiom for hyperfunction quantum field theory.
Nagamachi, S., Mugibayashi, N.
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Advanced Engineering Materials, EarlyView.The role of various alloying elements in face‐centered cubic aluminum on the barrier of a Shockley partial dislocation during its motion is presented. The study aims to understand how alloying atoms such as Mg, Si, and Zr affect the energy landscape for dislocation motion, thus influencing the solid solution hardening and softening in aluminum, which ...
Inna Plyushchay +3 more
wiley +1 more source
Point-form quantum field theory
, 2007 We examine canonical quantization of relativistic field theories on the forward hyperboloid, a Lorentz-invariant surface of the form $x_\mu x^\mu = \tau^2$.
Bakamjian +34 more
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