Results 21 to 30 of about 22,219,801 (305)
Quantum-Field-Theoretic Simulation Platform for Observing the Fate of the False Vacuum
PRX Quantum, 2021 We design and implement a quantum annealing simulation platform to observe and study dynamical processes in quantum field theory (QFT). Our approach encodes the field theory as an Ising model, which is then solved by a quantum annealer.
Steven Abel, Michael Spannowsky
doaj +1 more source
Journal of High Energy Physics, 2021 In this paper we derive from field theory a Lüscher-formula, which gives the leading exponentially small in volume corrections to the 1-particle form-factors in non-diagonally scattering integrable quantum field theories.
Árpád Hegedűs
doaj +1 more source
A finite quantum gravity field theory model [PDF]
Classical and Quantum Gravity, 2011 Latex, 33 ...
Alfaro Solís, Jorge Luis +2 more
openaire +6 more sources
Degenerate Perturbation Theory for Models of Quantum Field Theory with Symmetries
Annales Henri Poincaré, 2023 AbstractWe consider Hamiltonians of models describing non-relativistic quantum mechanical matter coupled to a relativistic field of bosons. If the free Hamiltonian has an eigenvalue, we show that this eigenvalue persists also for nonzero coupling. The eigenvalue of the free Hamiltonian may be degenerate provided there exists a symmetry group acting ...
Hasler, David, Lange, Markus
openaire +3 more sources
From the Jaynes–Cummings model to non-abelian gauge theories: a guided tour for the quantum engineer
New Journal of Physics, 2020 The design of quantum many body systems, which have to fulfill an extensive number of constraints, appears as a formidable challenge within the field of quantum simulation.
Valentin Kasper +4 more
doaj +1 more source
Quantum simulation of chiral phase transitions
Journal of High Energy Physics, 2022 The Nambu–Jona-Lasinio (NJL) model has been widely studied for investigating the chiral phase structure of strongly interacting matter. The study of the thermodynamics of field theories within the framework of Lattice Field Theory is limited by the sign ...
Alexander M. Czajka +3 more
doaj +1 more source
The quantum sine-Gordon model with quantum circuits
Nuclear Physics B, 2021 Analog quantum simulation has the potential to be an indispensable technique in the investigation of complex quantum systems. In this work, we numerically investigate a one-dimensional, faithful, analog, quantum electronic circuit simulator built out of ...
Ananda Roy +4 more
doaj +1 more source
Bethe Ansatz equations for the classical A^(1)_n affine Toda field theories [PDF]
, 2014 We establish a correspondence between classical A(1)n affine Toda field theories and An Bethe Ansatz systems. We show that the connection coefficients relating specific solutions of the associated classical linear problem satisfy functional relations of ...
Dunning, Clare +2 more
core +1 more source
Group field theories for all loop quantum gravity
New Journal of Physics, 2015 Group field theories represent a second quantized reformulation of the loop quantum gravity state space and a completion of the spin foam formalism. States of the canonical theory, in the traditional continuum setting, have support on graphs of arbitrary
Daniele Oriti +2 more
doaj +1 more source
Scale invariance with fundamental matters and anomaly: a holographic description
Journal of High Energy Physics, 2018 Generally, quantum field theories can be thought as deformations away from conformal field theories. In this article, with a simple bottom up model assumed to possess a holographic description, we study a putative large N quantum field theory with large ...
Avik Banerjee, Arnab Kundu, Augniva Ray
doaj +1 more source