46 citations · 77 across the 9 of their papers we have counts for
9 papers
Matrix-product-state-assisted variational Gibbs-state preparation
Rui-Hao Li, Semeon Valgushev, Khadijeh Najafi
Evaluating the von Neumann entropy is a central challenge in variational Gibbs-state preparation. We introduce and benchmark matrix-product-state (MPS) assistance for classically e…
Surrogate Constructed Scalable Circuits ADAPT-VQE in the Schwinger model
Erik Gustafson, Kyle Sherbert, Adrien Florio +8
Inspired by recent advancements of simulating periodic systems on quantum computers, we develop a new approach, (SC)-ADAPT-VQE, to further advance the simulation of these syste…
Lattice study of disordering of inhomogeneous condensates and the Quantum Pion Liquid in effective model
Marc Winstel, Semeon Valgushev
In this talk, we study a scalar model with a so-called moat regime -- a regime with negative bosonic wave function renormalization -- using lattice field theory. For negativ…
Contour deformations for non-holomorphic actions
Scott Lawrence, Semeon Valgushev, Jianan Xiao +1
We show how contour deformations may be used to control the sign problem of lattice Monte Carlo calculations with non-holomorphic actions. Such actions arise naturally in quantum m…
Mass gaps of a gauge theory with three fermion flavors in 1 + 1 dimensions
Adrien Florio, Andreas Weichselbaum, Semeon Valgushev +1
We consider a gauge theory coupled to three degenerate massive flavors of fermions, which we term "QZD". The spectrum can be computed in dimensions using tenso…
Generalized Hall current on a finite lattice
Srimoyee Sen, Semeon Valgushev
Gapped fermion theories with gapless boundary fermions can exist in any number of dimensions. When the boundary has even space-time dimensions and hosts chiral fermions, a quantum…
Quantum Information Science and Technology for Nuclear Physics. Input into U.S. Long-Range Planning, 2023
Douglas Beck, Joseph Carlson, Zohreh Davoudi +98
In preparation for the 2023 NSAC Long Range Plan (LRP), members of the Nuclear Science community gathered to discuss the current state of, and plans for further leveraging opportun…
How transverse thermal fluctuations disorder a condensate of chiral spirals into a quantum spin liquid
Robert D. Pisarski, Alexei M. Tsvelik, Semeon Valgushev
For a scalar theory with a global symmetry, when a spatially inhomogeneous condensate arises when the term in the Lagrangian with two spatial derivatives has a negativ…
The Lifshitz Regime and its Experimental Signals
R. D. Pisarski, F. Rennecke, A. Tsvelik +1
We discuss the possibility of a Lifshitz regime, where the dispersion relation for Goldstone bosons and related fields has a minimum at nonzero momenta. Studies with the Functional…