Results 61 to 70 of about 34,391 (232)

Antiferromagnetic self-ordering of a Fermi gas in a ring cavity

open access: yesNew Journal of Physics, 2019
We explore the density and spin self-ordering of driven spin-1/2 collisionless fermionic atoms coupled to the electromagnetic fields of a ring resonator.
Elvia Colella   +4 more
doaj   +1 more source

Gapped Chiral Fermions

open access: yesPhysical Review X, 2021
In principle, there is no obstacle to gapping fermions preserving any global symmetry that does not suffer a ’t Hooft anomaly. In practice, preserving a symmetry that is realized on fermions in a chiral manner necessitates some dynamics beyond simple ...
Shlomo S. Razamat, David Tong
doaj   +1 more source

Lattice fermionic Casimir effect in a slab bag and universality

open access: yesPhysics Letters B, 2022
We apply the physically more appealing MIT Bag boundary conditions to study the Casimir effect on the lattice. Employing the formalism of Ref. [1] to calculate the Casimir energy for free lattice fermions, we show that the results for the naive, Wilson ...
Yash V. Mandlecha, Rajiv V. Gavai
doaj   +1 more source

Long‐Range Interactions in Topological Superconducting Systems: A Mini Review

open access: yesAdvanced Physics Research, EarlyView.
Long‐range interacting quantum systems are surveyed in this review, with an emphasis on the long‐range topological superconductor and its variants. Long‐range interactions decaying in a power‐law manner can lead to exotic phenomena that finds no analogue in short‐range regimes.
Juntong Ren, Haifeng Lü
wiley   +1 more source

Single-atom imaging of fermions in a quantum-gas microscope

open access: yes, 2015
The authors acknowledge support by EU (ERC-StG FERMILATT, SIQS, Marie Curie Fellowship to E.H.), EPSRC, Scottish Universities Physics Alliance (SUPA).Single-atom-resolved detection in optical lattices using quantum-gas microscopes has enabled a new ...
Bruno Peaudecerf   +13 more
core   +1 more source

Informational approach to the quantum symmetrization postulate

open access: yesNew Journal of Physics, 2015
A remarkable feature of quantum theory is that particles with identical intrinsic properties must be treated as indistinguishable if the theory is to give valid predictions in all cases. In the quantum formalism, indistinguishability is expressed via the
Philip Goyal
doaj   +1 more source

The Mysteries of Fermions [PDF]

open access: yesInternational Journal of Theoretical Physics, 2010
It is conjectured that all known fermions are topological solitons. This could explain the non-observation of bosonic leptons and baryons and provide a physical mechanism for the Pauli exclusion principle.
openaire   +2 more sources

Moiré Folded Helical States at the Interfaces of Heterostructures

open access: yesAdvanced Physics Research, EarlyView.
This manuscript explores a minimal ladder model of a graphene‐topological‐insulator heterostructure where moiré superlattices modulate Rashba spin‐orbit coupling. The study reveals that SOC lifs spin degeneracy, halves spectral periodicity, and induces “helicity fragmentation” across moiré minibands.
Paula Mellado
wiley   +1 more source

Scalar-fermion theories on the lattice

open access: yes, 1994
We study scalar-fermion models with Yukawa interaction on a space-time lat- tice. Such models can describe the Higgs sector of the Standard Model in the case when the Higgs particle is very heavy (few hundred GeV) and there are very heavy fermions whose ...
Stephanov, Mikhail Alexeevich   +1 more
core   +1 more source

Rice–Mele model with topological solitons in an optical lattice

open access: yesNew Journal of Physics, 2015
Attractive ultracold fermions trapped in a one-dimensional periodically shaken optical lattice are considered. For an appropriate resonant shaking, a dimerized structure emerges for which the system realizes paradigmatic physics described by the Rice ...
Anna Przysiężna   +2 more
doaj   +1 more source

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