Results 31 to 40 of about 173,599 (260)
Digital quantum computation of fermion-boson interacting systems [PDF]
Physical Review A, 2018 We introduce a method for representing the low-energy subspace of a bosonic field theory on the qubit space of digital quantum computers. This discretization leads to an exponentially precise description of the subspace of the continuous theory thanks to
A. Macridin +3 more
semanticscholar +1 more source
Conformal Interactions Between Matter and Higher‐Spin (Super)Fields
Fortschritte der Physik, Volume 71, Issue 1, January 2023., 2023 Abstract In even spacetime dimensions, the interacting bosonic conformal higher‐spin (CHS) theory can be realised as an induced action. The main ingredient in this definition is the model S[φ,h]$\mathcal {S}[\varphi ,h]$ describing a complex scalar field φ coupled to an infinite set of background CHS fields h, with S[φ,h]$\mathcal {S}[\varphi ,h ...
Sergei M. Kuzenko +2 more
wiley +1 more source
About an (Im‐)Possible Anomaly in Band Structure Theory
physica status solidi (b), Volume 260, Issue 1, January 2023., 2023 The envelope function approach is used to establish fundamental analogies between certain types of 2D band structures and classes of elementary particles known as luxons, tardyons, and tachyons. Anomalies of the three fundamental spinor band structures and in the spectrum of Landau levels are discussed.
Alexander Quandt
wiley +1 more source
Probabilistic Q-function distributions in fermionic phase-space
New Journal of Physics, 2015 We obtain a positive probability distribution or Q -function for an arbitrary fermionic many-body system. This is different to previous Q -function proposals, which were either restricted to a subspace of the overall Hilbert space, or used Grassmann ...
Laura E C Rosales-Zárate, P D Drummond
doaj +1 more source
Fermion condensation and gapped domain walls in topological orders
Journal of High Energy Physics, 2017 We study fermion condensation in bosonic topological orders in two spatial dimensions. Fermion condensation may be realized as gapped domain walls between bosonic and fermionic topological orders, which may be thought of as real-space phase transitions ...
Yidun Wan, Chenjie Wang
doaj +1 more source
Fermionic Higher-form Symmetries [PDF]
, 2023 In this paper, we explore a new type of global symmetries$-$the fermionic higher-form symmetries. They are generated by topological operators with fermionic parameter, which act on fermionic extended objects. We present a set of field theory examples with fermionic higher-form symmetries, which are constructed from fermionic tensor fields. They include
arxiv +1 more source
Numerical study of fermion and boson models with infinite-range random interactions [PDF]
, 2016 We present numerical studies of fermion and boson models with random all-to-all interactions (the SYK models). The high temperature expansion and exact diagonalization of the $N$-site fermion model are used to compute the entropy density: our results are
Wenbo Fu, S. Sachdev
semanticscholar +1 more source
Chiral fermion reversal in chiral crystals [PDF]
Nature Communications, 2019 In materials chiral fermions such as Weyl fermions are characterized by nonzero chiral charges, which are singular points of Berry curvature in momentum space.
Hang Li +15 more
semanticscholar +1 more source
Scattering of fermions in the Yukawa theory coupled to unimodular gravity
European Physical Journal C: Particles and Fields, 2018 We compute the lowest order gravitational UV divergent radiative corrections to the S matrix element of the $$fermion + fermion\rightarrow fermion + fermion$$ fermion+fermion→fermion+fermion scattering process in the massive Yukawa theory, coupled either
S. Gonzalez-Martin, C. P. Martin
doaj +1 more source
Entropy, 2021 Finite quantum many fermion systems are essential for our current understanding of Nature. They are at the core of molecular, atomic, and nuclear physics.
Angel Ricardo Plastino +2 more
doaj +1 more source