Emergent particles and gauge fields in quantum matter

• URL: http://arxiv.org/abs/2008.08799v2
• Date: Mon, 19 Oct 2020 10:00:28 GMT
• Title: Emergent particles and gauge fields in quantum matter
• Authors: Ben J. Powell
• Abstract summary: I give a pedagogical introduction to some of the many particles and gauge fields that can emerge in correlated matter. I then describe the modern discovery of physics beyond the standard model. Gauge fields emerge naturally in the description of highly correlated matter and can lead to gauge bosons.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: I give a pedagogical introduction to some of the many particles and gauge fields that can emerge in correlated matter. The standard model of materials is built on Landau's foundational principles: adiabatic continuity and spontaneous symmetry breaking. These ideas lead to quasiparticles that inherit their quantum numbers from fundamental particles, Nambu-Goldstone bosons, the Anderson-Higgs mechanism, and topological defects in order parameters. I then describe the modern discovery of physics beyond the standard model. Here, quantum correlations (entanglement) and topology play key roles in defining the properties of matter. This can lead to fractionalised quasiparticles that carry only a fraction of the quantum numbers that define fundamental particles. These particles can have exotic properties: for example Majorana fermions are their own antiparticles, anyons have exchange statistics that are neither bosonic nor fermionic, and magnetic monopoles do not occur in the vacuum. Gauge fields emerge naturally in the description of highly correlated matter and can lead to gauge bosons. Relationships to the standard model of particle physics are discussed.

Related papers

• Interacting Dirac fields in an expanding universe: dynamical condensates and particle production [41.94295877935867]
  This work focuses on a self-interacting field theory of Dirac fermions in an expanding Friedmann-Robertson-Walker universe. We study how the non-trivialative condensates arise and, more importantly, how their real-time evolution has an impact on particle production.
  arXiv  Detail & Related papers  (2024-08-12T14:21:25Z)
• Identical particles as a genuine non-local resource [0.0]
  We show that all fermion states and most boson states provide a sufficient quantum resource to exhibit non-locality in classical optical setups. The only exception is a special class of boson states that are reducible to a single mode. This finding highlights the connection between the basic concept of particle indistinguishability and Bell non-locality.
  arXiv  Detail & Related papers  (2024-04-26T11:39:08Z)
• A Theory of Quantum Jumps [44.99833362998488]
  We study fluorescence and the phenomenon of quantum jumps'' in idealized models of atoms coupled to the quantized electromagnetic field. Our results amount to a derivation of the fundamental randomness in the quantum-mechanical description of microscopic systems.
  arXiv  Detail & Related papers  (2024-04-16T11:00:46Z)
• Antiparticles in non-relativistic quantum mechanics [55.2480439325792]
  Non-relativistic quantum mechanics was originally formulated to describe particles. We show how the concept of antiparticles can and should be introduced in the non-relativistic case without appealing to quantum field theory.
  arXiv  Detail & Related papers  (2024-04-02T09:16:18Z)
• Quantumness and quantum to classical transition in the generalized Rabi model [17.03191662568079]
  We define the quantumness of a Hamiltonian by the free energy difference between its quantum and classical descriptions. We show that the Jaynes-Cummings and anti Jaynes-Cummings models exhibit greater quantumness than the Rabi model.
  arXiv  Detail & Related papers  (2023-11-12T18:24:36Z)
• Particle exchange statistics beyond fermions and bosons [12.031278034659872]
  It is commonly believed that there are only two types of particle exchange statistics in quantum mechanics, fermions and bosons. We show that non parastatistics inequivalent to either fermions or bosons can exist in physical systems.
  arXiv  Detail & Related papers  (2023-08-09T19:51:07Z)
• An ontological description for relativistic, massive bosons [0.0]
  Locality holds for the quantum theory, and seems to be fully obeyed also by the classical treatment. We do discuss extensively the distinction between the quantum treatment and the classical one, even though they produce exactly the same equations mathematically. It is suggested to apply this theory for real time quantum model simulations.
  arXiv  Detail & Related papers  (2023-06-16T14:53:02Z)
• On free fall of fermions and antifermions [0.0]
  We propose a model describing spin-half quantum particles in curved spacetime. We find that spin precesses in a normal Fermi frame, even in the absence of torsion. We also find that (elementary) fermions and antifermions are indistinguishable in gravity.
  arXiv  Detail & Related papers  (2022-10-13T15:35:36Z)
• About non-relativistic quantum mechanics and electromagnetism [0.0]
  We use the mathematical frame of the field theory and its quantization in the spirit of the quantum-mechanical many-body theory. We show some examples of the importance of this extension of the many-body theory.
  arXiv  Detail & Related papers  (2022-07-27T05:05:27Z)
• Quantum indistinguishability through exchangeable desirable gambles [69.62715388742298]
  Two particles are identical if all their intrinsic properties, such as spin and charge, are the same. Quantum mechanics is seen as a normative and algorithmic theory guiding an agent to assess her subjective beliefs represented as (coherent) sets of gambles. We show how sets of exchangeable observables (gambles) may be updated after a measurement and discuss the issue of defining entanglement for indistinguishable particle systems.
  arXiv  Detail & Related papers  (2021-05-10T13:11:59Z)
• Non-equilibrium stationary states of quantum non-Hermitian lattice models [68.8204255655161]
  We show how generic non-Hermitian tight-binding lattice models can be realized in an unconditional, quantum-mechanically consistent manner. We focus on the quantum steady states of such models for both fermionic and bosonic systems.
  arXiv  Detail & Related papers  (2021-03-02T18:56:44Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.