ICTP lectures on (non-)invertible generalized symmetries by Schafer-Nameki, S

“…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. …”

Non-invertible higher-categorical symmetries by Bhardwaj, L, Bottini, L, Schäfer-Nameki, S, Tiwari, A

“…<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. …”

Physical interpretation of non-normalizable harmonic oscillator states and relaxation to pilot-wave equilibrium by Indrajit Sen

“…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

Non-standard axion electrodynamics and the dual Witten effect by Ben Heidenreich, Jacob McNamara, Matthew Reece

“…We conclude that non-standard axion electrodynamics, although interesting to consider in abstract quantum field theory, is not phenomenologically viable.…”
Get full text

Symmetry and Symmetry Breaking in Physics: From Geometry to Topology by Luciano Boi

“…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

Self-controlled wave solutions to the Tzitzeica-type nonlinear models in mathematical physics by M. Ali Akbar, Farah Aini Abdullah, Khaled A. Gepreel

“…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

Free electron gas in cavity quantum electrodynamics by Vasil Rokaj, Michael Ruggenthaler, Florian G. Eich, Angel Rubio

“…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

Line defects in three dimensional mirror symmetry beyond ADE quivers by Anindya Dey

“…Abstract Understanding the map of line defects in a Quantum Field Theory under a given duality is generically a difficult problem. …”
Get full text

A proposal for 3d quantum gravity and its bulk factorization by Thomas G. Mertens, Joan Simón, Gabriel Wong

“…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

Phenomenological Effects of CPT and Lorentz Invariance Violation in Particle and Astroparticle Physics by Vito Antonelli, Lino Miramonti, Marco Danilo Claudio Torri

“…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

Some Aspects of Mathematical and Physical Approaches for Topological Quantum Computation by V. Kantser

“…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

Exciton properties in 2D-Xenes nanomaterials within quantum field approaches by Arezu Jahanshir

“…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

Frame dragging and the Hong-Ou-Mandel dip: Gravitational effects in multiphoton interference by Anthony J. Brady, Stav Haldar

“…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

A Physically-Motivated Quantisation of the Electromagnetic Field on Curved Spacetimes by Ben Maybee, Daniel Hodgson, Almut Beige, Robert Purdy

“…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

A symmetry principle for gauge theories with fractons by Yuji Hirono, Minyoung You, Stephen Angus, Gil Young Cho

“…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

Intrinsic Entropy of Squeezed Quantum Fields and Nonequilibrium Quantum Dynamics of Cosmological Perturbations by Jen-Tsung Hsiang, Bei-Lok Hu

“…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

Casimir wormholes in modified symmetric teleparallel gravity by Zinnat Hassan, Sayantan Ghosh, P. K. Sahoo, Kazuharu Bamba

“…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

Social Laser Model for the Bandwagon Effect: Generation of Coherent Information Waves by Andrei Khrennikov

“…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

Semiconductor-metal transition of gold nanotubes by Ioann A. Matveev, Gennadiy I. Mironov

“…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. …”

Bremsstrahlung of Light through Spontaneous Emission of Gravitational Waves by Charles H.-T. Wang, Melania Mieczkowska

“…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