Accelerating Lattice Quantum Field Theory Calculations via Interpolator Optimization Using Noisy Intermediate-Scale Quantum Computing. [PDF]
Physical Review Letters, 2019 The only known way to study quantum field theories in nonperturbative regimes is using numerical calculations regulated on discrete space-time lattices.
A. Avkhadiev, P. Shanahan, R. Young
semanticscholar +1 more source
Tensor lattice field theory for renormalization and quantum computing [PDF]
Reviews of Modern Physics, 2020 We discuss the successes and limitations of statistical sampling for a sequence of models studied in the context of lattice QCD and emphasize the need for new methods to deal with finite-density and real-time evolution.
Y. Meurice, Ryo Sakai, J. Unmuth-Yockey
semanticscholar +1 more source
Nucleon momentum fraction, helicity and transversity from 2+1-flavor lattice QCD
Journal of High Energy Physics, 2021 A detailed analysis of the systematic uncertainties in the calculation of the isovector momentum fraction, 〈x〉 u − d , helicity moment, 〈x〉Δu − Δd , and the transversity moment, 〈x〉 δu − δd , of the nucleon is presented using high-statistics data on ...
Nucleon Matrix Elements (NME) collaboration +7 more
doaj +1 more source
Isospin-1/2 Dπ scattering and the lightest D 0 ∗ $$ {D}_0^{\ast } $$ resonance from lattice QCD
Journal of High Energy Physics, 2021 Isospin-1/2 Dπ scattering amplitudes are computed using lattice QCD, working in a single volume of approximately (3.6 fm)3 and with a light quark mass corresponding to m π ≈ 239 MeV.
Luke Gayer +6 more
doaj +1 more source
Deligne categories in lattice models and quantum field theory, or making sense of O(N) symmetry with non-integer N [PDF]
Journal of High Energy Physics, 2019 When studying quantum field theories and lattice models, it is often useful to analytically continue the number of field or spin components from an integer to a real number.
Damon J. Binder, S. Rychkov
semanticscholar +1 more source
Relativistic N-particle energy shift in finite volume
Journal of High Energy Physics, 2021 We present a general method for deriving the energy shift of an interacting system of N spinless particles in a finite volume. To this end, we use the nonrelativistic effective field theory (NREFT), and match the pertinent low-energy constants to the ...
Fernando Romero-López +3 more
doaj +1 more source
Lattice setup for quantum field theory in AdS2 [PDF]
, 2019 Holographic Conformal Field Theories (CFTs) are usually studied in a limit where the gravity description is weakly coupled. By contrast, lattice quantum field theory can be used as a tool for doing computations in a wider class of holographic CFTs where ...
R. Brower +4 more
semanticscholar +1 more source
Conformal Field Theory from Lattice Fermions [PDF]
Communications in Mathematical Physics, 2021 We provide a rigorous lattice approximation of conformal field theories given in terms of lattice fermions in 1+1-dimensions, focussing on free fermion models and Wess–Zumino–Witten models. To this end, we utilize a recently introduced operator-algebraic
T. Osborne, Alexander Stottmeister
semanticscholar +1 more source
Field theory of Skyrme lattices in quantum Hall ferromagnets [PDF]
Physical Review B, 1998 17 ...
Abolfath, M., Ejtehadi, M. R.
openaire +3 more sources
Quantum algorithms for open lattice field theory [PDF]
Physical Review A, 2020 Certain aspects of some unitary quantum systems are well-described by evolution via a non-Hermitian effective Hamiltonian, as in the Wigner-Weisskopf theory for spontaneous decay. Conversely, any non-Hermitian Hamiltonian evolution can be accommodated in
J. Hubisz +2 more
semanticscholar +1 more source