252 citations · 273 across the 15 of their papers we have counts for
15 papers
Improved Measurement Cost Scaling in the Nonorthogonal Quantum Eigensolver
Mingyu Kang, K. Birgitta Whaley
Quantum subspace diagonalization methods are promising algorithms for quantum chemistry on near-term quantum computers. These methods can estimate low-lying energies of molecular s…
Towards Heisenberg Scaling: Measurement-Efficient Non-Orthogonal Quantum Eigensolver
Hang Ren, Yipei Zhang, Thilo Scharnhorst +1
The Non-Orthogonal Quantum Eigensolver (NOQE) provides an accurate framework for electronic-structure calculations, but the estimation of its Hamiltonian and overlap matrix element…
Provable Quantum Speedups for Reaction-Rate Estimation in High-Dimensional Fokker-Planck Dynamics
Tyler Kharazi, Ahmad M. Alkadri, Kranthi K. Mandadapu +1
The Fokker-Planck equation models rare events across sciences, but blue{direct solution of the PDE is intractable for classical computers due to } its high-dimensional nature. Clas…
Quantum Sensing of Gravitational Frame-Dragging with a Superfluid He Gyrometer
Kai-Isaak Ellers, Marios Christodoulou, K. C. Schwab +1
We propose a laboratory-scale experiment to locally measure the general relativistic frame-dragging effect on Earth using the macroscopic quantum properties of a novel superfluid $…
A Quantum Algorithm for the Finite Element Method
Ahmad M. Alkadri, Tyler D. Kharazi, K. Birgitta Whaley +1
The finite element method (FEM) is a cornerstone numerical technique for solving partial differential equations (PDEs). Here, we present , a fault-tolerant era qua…
Fault-tolerant correction-ready encoding of the [[7,1,3]] Steane code on a 2D grid
Andrea Rodriguez-Blanco, Ho Nam Nguyen, K. Birgitta Whaley
Practical quantum computation heavily relies on the ability to perform quantum error correction in a fault-tolerant manner. Fault-tolerant encoding is a critical first step, and ca…
Exponential quantum speedups for near-term molecular electronic structure methods
Oskar Leimkuhler, K. Birgitta Whaley
We prove classical simulation hardness, under the generalized conjecture, for quantum circuit families with applications in near-term chemical ground st…
Optimal sensing on an asymmetric exceptional surface
Robert L. Cook, Liwen Ko, K. Birgitta Whaley
We study the connection between exceptional points (EPs) and optimal parameter estimation, in a simple system consisting of two counter-propagating traveling wave modes in a micror…
Explicit block encodings of boundary value problems for many-body elliptic operators
Tyler Kharazi, Ahmad M. Alkadri, Jin-Peng Liu +2
Simulation of physical systems is one of the most promising use cases of future digital quantum computers. In this work we systematically analyze the quantum circuit complexities o…
Efficient state preparation for the quantum simulation of molecules in first quantization
William J. Huggins, Oskar Leimkuhler, Torin F. Stetina +1
The quantum simulation of real molecules and materials is one of the most highly anticipated applications of quantum computing. Algorithms for simulating electronic structure using…
ML-Powered FPGA-based Real-Time Quantum State Discrimination Enabling Mid-circuit Measurements
Neel R. Vora, Yilun Xu, Akel Hashim +12
Accurate and timely quantum state discrimination is critical for quantum computing, particularly in protocols requiring mid-circuit measurement (MCM) and conditional feed-forward.…
A quantum eigenvalue solver based on tensor networks
Oskar Leimkuhler, K. Birgitta Whaley
Electronic ground states are of central importance in chemical simulations, but have remained beyond the reach of efficient classical algorithms except in cases of weak electron co…
An efficient quantum algorithm for generation of ab initio n-th order susceptibilities for non-linear spectroscopies
Tyler Kharazi, Torin F. Stetina, Liwen Ko +2
We develop and analyze a fault-tolerant quantum algorithm for computing -th order response properties necessary for analysis of non-linear spectroscopies of molecular and conden…
Performing quantum entangled biphoton spectroscopy using classical light pulses
Liwen Ko, Robert L. Cook, K. Birgitta Whaley
We show that for a class of quantum light spectroscopy (QLS) experiments using n = 0,1,2, classical light pulses and an entangled photon pair (a biphoton state) where one p…
Efficient and Noise Resilient Measurements for Quantum Chemistry on Near-Term Quantum Computers
William J. Huggins, Jarrod McClean, Nicholas Rubin +4
Variational algorithms are a promising paradigm for utilizing near-term quantum devices for modeling electronic states of molecular systems. However, previous bounds on the measure…