456 citations · 1.3k across the 17 of their papers we have counts for
14 papers · 1 filter
Variational Quantum Eigensolver with Reduced Circuit Complexity
Yu Zhang, Lukasz Cincio, Christian F. A. Negre +6
The variational quantum eigensolver (VQE) is one of the most promising algorithms to find eigenvalues and eigenvectors of a given Hamiltonian on noisy intermediate-scale quantum (N…
Correlation-Informed Permutation of Qubits for Reducing Ansatz Depth in VQE
Nikolay V. Tkachenko, James Sud, Yu Zhang +6
The Variational Quantum Eigensolver (VQE) is a method of choice to solve the electronic structure problem for molecules on near-term gate-based quantum computers. However, the circ…
Quantum random walks with multiphoton interference and high order correlation functions
Bryan T Gard, Robert M Cross, Petr M Anisimov +2
We show a simulation of quantum random walks with multiple photons using a staggered array of 50/50 beam splitters with a bank of detectors at any desired level. We discuss the mul…
Thwarting the Photon Number Splitting Attack with Entanglement Enhanced BB84 Quantum Key Distribution
Carl F. Sabottke, Chris D. Richardson, Petr M. Anisimov +3
We develop an improvement to the weak laser pulse BB84 scheme for quantum key distribution, which utilizes entanglement to improve the security of the scheme and enhance its resili…
Phase estimation with two-mode squeezed-vacuum and parity detection restricted to finite resources
Keith R. Motes, Petr M. Anisimov, Jonathan P. Dowling
A recently proposed phase-estimation protocol that is based on measuring the parity of a two-mode squeezed-vacuum state at the output of a Mach-Zehnder interferometer shows that Cr…
Coherent and Squeezed Vacuum Light Interferometry: Parity detection hits the Heisenberg limit
Kaushik P. Seshadreesan, Petr M. Anisimov, Hwang Lee +1
The interference between coherent and squeezed vacuum light can produce path entangled states with very high fidelities. We show that the phase sensitivity of the above interferome…