Results 21 to 30 of about 173,599 (260)
Optimal fermion-to-qubit mapping via ternary trees with applications to reduced quantum states learning [PDF]
Quantum, 2019 We introduce a fermion-to-qubit mapping defined on ternary trees, where any single Majorana operator on an $n$-mode fermionic system is mapped to a multi-qubit Pauli operator acting nontrivially on $\lceil \log_3(2n+1)\rceil$ qubits.
Zhang Jiang +3 more
semanticscholar +1 more source
Machine learning quantum phases of matter beyond the fermion sign problem [PDF]
Scientific Reports, 2016 State-of-the-art machine learning techniques promise to become a powerful tool in statistical mechanics via their capacity to distinguish different phases of matter in an automated way.
Peter Broecker +3 more
semanticscholar +1 more source
Discovery of Weyl fermion semimetals and topological Fermi arc states [PDF]
, 2017 Weyl semimetals are conductors whose low-energy bulk excitations are Weyl fermions, whereas their surfaces possess metallic Fermi arc surface states.
M Zahid Hasan +3 more
semanticscholar +1 more source
A Weyl Fermion semimetal with surface Fermi arcs in the transition metal monopnictide TaAs class
Nature Communications, 2015 Weyl fermions are massless chiral fermions that play an important role in quantum field theory but have never been observed as fundamental particles.
Shin-Ming Huang +13 more
semanticscholar +1 more source
Observation of Topological Nodal Fermion Semimetal Phase in ZrSiS [PDF]
, 2016 The search for new topological phases of matter is a major new direction in condensed matter physics. Recent experimental realizations of Dirac and Weyl semimetal phases pave the way to look for other exotic phases of matter in real materials.
M. Neupane +14 more
semanticscholar +1 more source
Gauge field and fermion production during axion inflation [PDF]
Journal of Cosmology and Astroparticle Physics, 2018 We study the dual production of helical Abelian gauge fields and chiral fermions through the Chern-Simons (CS) coupling with a pseudo-scalar inflaton in the presence of a chiral anomaly. Through the CS term, the motion of the inflaton induces a tachyonic
V. Domcke, K. Mukaida
semanticscholar +1 more source
Lattice-fermionic Casimir effect and topological insulators
Physical Review Research, 2021 The Casimir effect arises from the zero-point energy of particles in momentum space deformed by the existence of two parallel plates. For degrees of freedom on the lattice, its energy-momentum dispersion is determined so as to keep a periodicity within ...
Tsutomu Ishikawa +2 more
doaj +1 more source
Polarized Raman spectroscopy on topological semimetal Co3Sn2S2
Journal of Raman Spectroscopy, Volume 54, Issue 1, Page 93-100, January 2023., 2023 We present polarized Raman spectroscopy of the topological semimetal Co3Sn2S2. Two major phonon Raman peaks were observed at 289 and 386 cm−1 over continuous background emission signals and attributed to Γ point phonon modes with Eg and A1g symmetries, respectively, according to the group theory and Raman tensor analysis.
Kenya Tanaka +5 more
wiley +1 more source
Quantum transport in d-dimensional lattices
New Journal of Physics, 2016 We show that both fermionic and bosonic uniform d -dimensional lattices can be reduced to a set of independent one-dimensional chains. This reduction leads to the expression for ballistic energy fluxes in uniform fermionic and bosonic lattices.
Daniel Manzano +2 more
doaj +1 more source
Differences and similarities between fundamental and adjoint matters in SU(N) gauge theories [PDF]
Phys.Rev.D88:016002,2013, 2013 We investigate differences and similarities between fundamental fermions and adjoint fermions in SU(N) gauge theories. The gauge theory with fundamental fermions possesses ZN symmetry only in the limit of infinite fermion mass, whereas the gauge theory with adjoint fermions does have the symmetry for any fermion mass.
arxiv +1 more source