-
881
ICTP lectures on (non-)invertible generalized symmetries
Published 2024“…What comprises a global symmetry of a Quantum Field Theory (QFT) has been vastly expanded in the past 10 years to include not only symmetries acting on higher-dimensional defects, but also most recently symmetries which do not have an inverse. …”
Journal article -
882
Non-invertible higher-categorical symmetries
Published 2023“…<p>We sketch a procedure to capture general non-invertible symmetries of a <em>d</em>-dimensional quantum field theory in the data of a higher-category, which captures the local properties of topological defects associated to the symmetries. …”
Journal article -
883
Physical interpretation of non-normalizable harmonic oscillator states and relaxation to pilot-wave equilibrium
Published 2024-01-01“…Lastly, we discuss applications in quantum field theory and quantum gravity, and implications for pilot-wave theory and quantum foundations in general.…”
Get full text
Article -
884
Non-standard axion electrodynamics and the dual Witten effect
Published 2024-01-01“…We conclude that non-standard axion electrodynamics, although interesting to consider in abstract quantum field theory, is not phenomenologically viable.…”
Get full text
Article -
885
Symmetry and Symmetry Breaking in Physics: From Geometry to Topology
Published 2021-11-01“…In more recent years, we have been faced with the impact of topological quantum field theory (TQFT). Topology and symmetry have deep connections, but topology is inherently broader and more complex. …”
Get full text
Article -
886
Self-controlled wave solutions to the Tzitzeica-type nonlinear models in mathematical physics
Published 2022-05-01“…Quantum field theory and solid-state physics phenomena are interpreted using the Tzitzeica-Dodd-Bullough model and nonlinear optics and electromagnetic waves are studied through the Dodd-Bullough-Mikhailov equation. …”
Get full text
Article -
887
Free electron gas in cavity quantum electrodynamics
Published 2022-01-01“…Our exact solution allows us to consider the thermodynamic limit for both electrons and photons by constructing an effective quantum field theory. The continuum of modes leads to a many-body renormalization of the electron mass, which modifies the fermionic quasiparticle excitations of the Fermi liquid and the Wigner-Seitz radius of the interacting electron gas. …”
Get full text
Article -
888
Line defects in three dimensional mirror symmetry beyond ADE quivers
Published 2023-02-01“…Abstract Understanding the map of line defects in a Quantum Field Theory under a given duality is generically a difficult problem. …”
Get full text
Article -
889
A proposal for 3d quantum gravity and its bulk factorization
Published 2023-06-01“…We show that the correct calculation of gravitational entropy suggests we should interpret the bulk theory as an extended topological quantum field theory associated to the quantum semi-group SL q + 2 ℝ ⨂ SL q + 2 ℝ $$ {\textrm{SL}}_q^{+}\left(2,\mathbb{R}\right)\bigotimes {\textrm{SL}}_q^{+}\left(2,\mathbb{R}\right) $$ . …”
Get full text
Article -
890
Phenomenological Effects of CPT and Lorentz Invariance Violation in Particle and Astroparticle Physics
Published 2020-11-01“…It is well known that a fundamental theorem of Quantum Field Theory (QFT) set in flat spacetime ensures the <inline-formula><math display="inline"><semantics><mrow><mi>C</mi><mi>P</mi><mi>T</mi></mrow></semantics></math></inline-formula> invariance of the theory. …”
Get full text
Article -
891
Some Aspects of Mathematical and Physical Approaches for Topological Quantum Computation
Published 2011-10-01“…The identities in the ensemble of knots, links and braids originally discovered in relation to topological quantum field theory are shown: how they define Artin braid group -- the mathematical basis of topological quantum computation (TQC). …”
Get full text
Article -
892
Exciton properties in 2D-Xenes nanomaterials within quantum field approaches
Published 2021-10-01“…For example, accelerated research into understanding how quantum field theory is connected to physics has attracted a lot of attention from other domains. …”
Get full text
Article -
893
Frame dragging and the Hong-Ou-Mandel dip: Gravitational effects in multiphoton interference
Published 2021-04-01“…Applying quantum field theory on a classical, curved space-time has led to the enthralling theoretical predictions of, e.g., black hole evaporation and particle creation in the early, expanding universe. …”
Get full text
Article -
894
A Physically-Motivated Quantisation of the Electromagnetic Field on Curved Spacetimes
Published 2019-08-01“…Working within the standard assumptions of quantum field theory and only postulating the physicality of the photon, we derive the Hamiltonian, <inline-formula> <math display="inline"> <semantics> <mover accent="true"> <mi>H</mi> <mo stretchy="false">^</mo> </mover> </semantics> </math> </inline-formula>, and the electric and magnetic field observables, <inline-formula> <math display="inline"> <semantics> <mover accent="true"> <mi mathvariant="bold">E</mi> <mo stretchy="false">^</mo> </mover> </semantics> </math> </inline-formula> and <inline-formula> <math display="inline"> <semantics> <mover accent="true"> <mi mathvariant="bold">B</mi> <mo stretchy="false">^</mo> </mover> </semantics> </math> </inline-formula>, respectively, without having to invoke a specific gauge. …”
Get full text
Article -
895
A symmetry principle for gauge theories with fractons
Published 2024-02-01“…These symmetries fall within the standard definition of higher-form symmetries in quantum field theory, and the corresponding symmetry generators are topological. …”
Get full text
Article -
896
Intrinsic Entropy of Squeezed Quantum Fields and Nonequilibrium Quantum Dynamics of Cosmological Perturbations
Published 2021-11-01“…In this paper, different from previous treatments, we tackle this issue with a fully developed nonequilibrium quantum field theory formalism for such systems. We compute the covariance matrix elements of the parametric quantum field and solve for the evolution of the density matrix elements and the Wigner functions, and, from them, derive the von Neumann entropy. …”
Get full text
Article -
897
Casimir wormholes in modified symmetric teleparallel gravity
Published 2022-12-01“…The Casimir effect is an experimentally verified effect that is caused due to the vacuum field fluctuations in quantum field theory. Since the Casimir effect provides the negative energy density, thus this act as an ideal candidate for the exotic matter needed for the stability of the wormhole. …”
Get full text
Article -
898
Social Laser Model for the Bandwagon Effect: Generation of Coherent Information Waves
Published 2020-05-01“…However, social laser theory gives the possibility to model it by using general formalism of quantum field theory. The paper contains the minimum of mathematics and it can be read by researchers working in psychological, cognitive, social, and political sciences; it might also be interesting for experts in information theory and artificial intelligence.…”
Get full text
Article -
899
Semiconductor-metal transition of gold nanotubes
Published 2023-12-01“…In the process of studying gold nanotubes of chiralities (6.0) and (7.0) within the Hubbard model in the approximation of static fluctuations, a transition was made to the nanotube model in order to be able to mathematically describe our nanoparticles within the framework of quantum field theory. An important role is played by the π-electron, which has transport properties. …”
Article -
900
Bremsstrahlung of Light through Spontaneous Emission of Gravitational Waves
Published 2021-05-01“…Vacuum fluctuations of electromagnetic field have provided crucial evidence and guidance for QED as a successful quantum field theory with a defining gauge symmetry through the Lamb shift, Casimir effect, and spontaneous emission. …”
Get full text
Article