Results 111 to 120 of about 704,837 (230)

Quantum Algorithms for Fermionic Quantum Field Theories [PDF]

, 2014
Extending previous work on scalar field theories, we develop a quantum algorithm to compute relativistic scattering amplitudes in fermionic field theories, exemplified by the massive Gross-Neveu model, a theory in two spacetime dimensions with quartic ...
Jordan, Stephen P., Lee, Keith S. M., Preskill, John   +2 more
core   +1 more source

Renormalising the field-space geometry

Journal of High Energy Physics
We present a systematic study of one-loop quantum corrections in scalar effective field theories from a geometric viewpoint, emphasizing the role of field-space curvature and its renormalisation.
Patrick Aigner, Luigi Bellafronte, Emanuele Gendy, Dominik Haslehner, Andreas Weiler   +4 more
doaj   +1 more source

Exact form factors in integrable quantum field theories: the sine-Gordon model [PDF]

, 1998
H. Babujian, A. Fring, M. Karowski, A. Zapletal   +3 more
semanticscholar   +1 more source

Quantum groups as global symmetries

Journal of High Energy Physics
We study quantum field theories which have quantum groups as global internal symmetries. We show that in such theories operators are generically non-local, and should be thought as living at the ends of topological lines.
Barak Gabai, Victor Gorbenko, Jiaxin Qiao, Bernardo Zan, Aleksandr Zhabin   +4 more
doaj   +1 more source

Classical analog of the T. D. Lee model for renormalization

Nuclear Physics B
Although divergence and renormalization of physical quantities are frequently encountered in quantum field theory (QFT), they are not necessarily quantum-specific characteristics. We show in this paper that there exists a classical counterpart of the Lee
Kang Xu, C.P. Sun
doaj   +1 more source

Modeling Quantum Field Theory [PDF]

Physics, 2012
openaire   +1 more source

A Computer Model Of Quantum Field Theory

, 2013
This paper describes a computer model of Quantum Field Theory (QFT), referred to in this paper as QTModel. After specifying the initial configuration for a QFT process (e.g. scattering) the model generates the possible applicable processes in terms of Feynman diagrams, the equations for the scattering matrix, and evaluates probability amplitudes for ...
openaire   +1 more source

Lessons from Toy-Models for the Dynamics of Loop Quantum Gravity

Symmetry, Integrability and Geometry: Methods and Applications, 2012
We review some approaches to the Hamiltonian dynamics of (loop) quantum gravity, the main issues being the regularization of the Hamiltonian and the continuum limit.
Valentin Bonzom, Alok Laddha
doaj   +1 more source

About the Absolute Analogy Between Electromagnetism and Gravitomagnetism

Reports in Advances of Physical Sciences
This study proposes a new formulation of gravitational field dynamics using Maxwell-like equations, thus offering an alternative to Einstein’s general theory of relativity.
Borros Arneth
doaj   +1 more source

Quantum field theories on a lattice: Variational methods for arbitrary coupling strengths and the Ising model in a transverse magnetic field

, 1977
S. Drell, M. Weinstein, S. Yankielowicz
semanticscholar   +1 more source