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…
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…
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…
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…