5 papers · 1 filter
Digital Quantum Simulation of Spin Transport
Yi-Ting Lee, Bibek Pokharel, Jeffrey Cohn +2
Understanding transport phenomena in quantum spin systems has long intrigued physicists due to their potential applications in spintronic devices and spin qubits. Here, using a sup…
Superdiffusion resilience in Heisenberg Chains with 2D interactions on a quantum processor
Keerthi Kumaran, Manas Sajjan, Bibek Pokharel +7
Observing superdiffusive scaling in the spin transport of the integrable 1D Heisenberg model is one of the key discoveries in non-equilibrium quantum many-body physics. Despite thi…
Subspace methods for electronic structure simulations on quantum computers
Mario Motta, William Kirby, Ieva Liepuoniute +7
Quantum subspace methods (QSMs) are a class of quantum computing algorithms where the time-independent Schrodinger equation for a quantum system is projected onto a subspace of the…
Gibbs state sampling via cluster expansions
Norhan M. Eassa, Mahmoud M. Moustafa, Arnab Banerjee +1
Gibbs states (i.e., thermal states) can be used for several applications such as quantum simulation, quantum machine learning, quantum optimization, and the study of open quantum s…
Minimal Effective Gibbs Ansatz (MEGA): A simple protocol for extracting an accurate thermal representation for quantum simulation
Jeffrey Cohn, Khadijeh Sona Najafi, Forest Yang +2
Quantum Gibbs state sampling algorithms generally suffer from either scaling exponentially with system size or requiring specific knowledge of spectral properties \textit{a priori}…