Results 31 to 40 of about 807,423 (184)
Hamiltonian lattice gauge models and the Heisenberg double [PDF]
Mod.Phys.Lett. A10 (1995) 2885-2896, 1995 Hamiltonian lattice gauge models based on the assignment of the Heisenberg double of a Lie group to each link of the lattice are constructed in arbitrary space-time dimensions. It is shown that the corresponding generalization of the gauge-invariant Wilson line observables requires to attach to each vertex of the line a vertex operator which goes to ...
arxiv +1 more source
Towards overcoming the Monte Carlo sign problem with tensor networks
EPJ Web of Conferences, 2017 The study of lattice gauge theories with Monte Carlo simulations is hindered by the infamous sign problem that appears under certain circumstances, in particular at non-zero chemical potential.
Bañuls Mari Carmen +5 more
doaj +1 more source
Simulating lattice gauge theories on a quantum computer [PDF]
Phys.Rev. A73 (2006) 022328, 2005 We examine the problem of simulating lattice gauge theories on a universal quantum computer. The basic strategy of our approach is to transcribe lattice gauge theories in the Hamiltonian formulation into a Hamiltonian involving only Pauli spin operators such that the simulation can be performed on a quantum computer using only one and two qubit ...
arxiv +1 more source
On the Definition of Chirality and Enantioselective Fields
Israel Journal of Chemistry, Volume 62, Issue 11-12, December 2022., 2022 Abstract In solid state physics, any symmetry breaking is known to be associated with emergence of an order parameter. However, the order parameter for molecular and crystal chirality, which is a consequence of parity and mirror symmetry breaking, has not been known since its discovery.
Jun‐ichiro Kishine +2 more
wiley +1 more source
Generalized eigenproblem without fermion doubling for Dirac fermions on a lattice
SciPost Physics, 2021 The spatial discretization of the single-cone Dirac Hamiltonian on the surface of a topological insulator or superconductor needs a special "staggered" grid, to avoid the appearance of a spurious second cone in the Brillouin zone.
M. J. Pacholski, G. Lemut, J. Tworzydło, C. W. J. Beenakker
doaj +1 more source
A new basis for Hamiltonian SU(2) simulations [PDF]
arXiv, 2023 Due to rapidly improving quantum computing hardware, Hamiltonian simulations of relativistic lattice field theories have seen a resurgence of attention. This computational tool requires turning the formally infinite-dimensional Hilbert space of the full theory into a finite-dimensional one.
arxiv
From the pseudogap metal to the Fermi liquid using ancilla qubits
Physical Review Research, 2020 We propose a new parton theory of the hole-doped cuprates, describing the evolution from the pseudogap metal with small Fermi surfaces to the conventional Fermi liquid with a large Fermi surface.
Ya-Hui Zhang, Subir Sachdev
doaj +1 more source
Journal of High Energy Physics, 2021 A class of high-order canonical symplectic structure-preserving geometric algorithms are developed for high-quality simulations of the quantized Dirac-Maxwell theory based strong-field quantum electrodynamics (SFQED) and relativistic quantum plasmas (RQP)
Qiang Chen, Jianyuan Xiao, Peifeng Fan
doaj +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
Low energy spectrum of SU(2) lattice gauge theory
European Physical Journal C: Particles and Fields, 2019 Prepotential formulation of gauge theories on honeycomb lattice yields local loop states, which are exact and orthonormal being free from any spurious loop degrees of freedom.
Indrakshi Raychowdhury
doaj +1 more source