6 papers
Quantum Flow algorithm: quantum simulations of chemical systems using reduced quantum resources and constant depth quantum circuits
Bhumika Jayee, Nathan M. Myers, Duo Song +3
We assess the performance of the Quantum Flow (QFlow) algorithm employing cost-effective solvers based on the unitary coupled-cluster ansatz with single and double excitations (QFl…
Exact and Efficient Stabilizer Simulation of Thermal-Relaxation Noise for Quantum Error Correction
Sean R. Garner, Nathan M. Myers, Meng Wang +3
Stabilizer-based simulation of quantum error-correcting codes typically relies on the Pauli-twirling approximation (PTA) to render non-Clifford noise classically tractable, but PTA…
Toward Quantum Analog Simulation of Many-Body Supersymmetry with Rydberg Atom Arrays
Hrushikesh Sable, Nathan M. Myers, Vito W. Scarola
A topological quantum number, the Witten index, characterizes supersymmetric models by probing for zero energy modes and the possibility of supersymmetry breaking. We propose an av…
Coupled Cluster Downfolding Theory in Simulations of Chemical Systems on Quantum Hardware
Nicholas P. Bauman, Muqing Zheng, Chenxu Liu +5
The practical application of quantum technologies to chemical problems faces significant challenges, particularly in the treatment of realistic basis sets and the accurate inclusio…
Noise-resilient and resource-efficient hybrid algorithm for robust quantum gap estimation
Woo-Ram Lee, Nathan M. Myers, V. W. Scarola
We present a hybrid quantum algorithm for estimating gaps in many-body energy spectra, supported by an analytic proof of its inherent resilience to state preparation and measuremen…
Unifying Collisional Models and the Monte Carlo Metropolis Method: Algorithms for Dynamics of Open Quantum Systems
Nathan M. Myers, Hrushikesh Sable, Vito W. Scarola
Classical systems placed in contact with a thermal bath will inevitably equilibrate to a thermal state at the bath temperature. The same is not generally true for open quantum syst…