Results 111 to 120 of about 173,599 (260)
Mitigating Errors in Local Fermionic Encodings [PDF]
arXiv, 2020 Quantum simulations of fermionic many-body systems crucially rely on mappings from indistinguishable fermions to distinguishable qubits. The non-local structure of fermionic Fock space necessitates encodings that either map local fermionic operators to non-local qubit operators, or encode the fermionic representation in a long-range entangled code ...
arxiv
Electrical Conductivities and Low Frequency Opacities in the Warm Dense Matter Regime
Contributions to Plasma Physics, EarlyView.ABSTRACT In this article, we examine different approaches for calculating low frequency opacities in the warm dense matter regime. The relevance of the average‐atom approximation and of different models for calculating opacities, such as the Ziman or Ziman–Evans models is discussed and the results compared to ab initio simulations.
Mikael Tacu +3 more
wiley +1 more source
Composite Fermions and the Fermion-Chern-Simons Theory [PDF]
, 2003 The concept of composite fermions, and the related Fermion-Chern-Simons theory, have been powerful tools for understanding quantum Hall systems with a partially full lowest Landau level. We shall review some of the successes of the Fermion-Chern-Simons theory, as well as some limitations and outstanding issues.
arxiv +1 more source
Fermion-scalar conformal blocks [PDF]
, 2015 A bstractWe compute the conformal blocks associated with scalar-scalar-fermion-fermion 4-point functions in 3D CFTs. Together with the known scalar conformal blocks, our result completes the task of determining the so-called ‘seed blocks’ in three ...
Luca V. Iliesiu +5 more
semanticscholar +1 more source
EcoEnergy, EarlyView.The interstitial electrons of electride Hf2Se form topological states on the Fermi surface, coupled with low work function feature, enhancing the activity of hydrogen evolution reaction on the (001) surface. Abstract Recently, the emergence of topological electride catalysts has attracted significant attention in the fields of condensed matter physics,
Weizhen Meng +6 more
wiley +1 more source
Fermion mass generation without a condensate [PDF]
arXiv, 2014 We study a lattice field theory model containing two flavors of massless staggered fermions with an onsite four-fermion interaction. The symmetry of the model forbids non-zero fermion bilinear order parameters that can generate a fermion mass. At weak couplings, we expect a massless fermion phase.
arxiv
Interplay Between Spin‐Triplet Pairing and Ferromagnetism in Uranium Ditelluride
Nano Select, EarlyView.This study investigates how spin triplet superconductivity and ferromagnetism interact in uranium ditelluride (UTe2). It shows that magnetic fluctuations strongly influence the superconducting behavior. The results suggest that ferromagnetic tendencies can contribute to the stabilization of spin triplet pairing. These findings provide new insights into
Habtamu Anagaw Muluneh +2 more
wiley +1 more source
Phases and dynamics of few fermionic impurities immersed in two-dimensional boson droplets
Physical Review ResearchWe unravel the ground state properties and emergent nonequilibrium dynamics of a mixture consisting of a few spin-polarized fermions embedded in a two-dimensional bosonic quantum droplet. For an increasingly attractive droplet-fermion interaction we find
Jose Carlos Pelayo +3 more
doaj +1 more source
Constraints on dark matter annihilation to fermions and a photon
Journal of High Energy Physics, 2018 We consider Majorana dark matter annihilation to fermion-anti-fermion pair and a photon in the effective field theory paradigm, by introducing dimension 6 and dimension 8 operators in the Lagrangian.
Debtosh Chowdhury +2 more
doaj +1 more source