779 citations · 8k across the 90 of their papers we have counts for
7 papers · 1 filter
Adaptive estimation of a time-varying phase with a power-law spectrum via continuous squeezed states
Hossein T. Dinani, Dominic W. Berry
When measuring a time-varying phase, the standard quantum limit and Heisenberg limit as usually defined, for a constant phase, do not apply. If the phase has Gaussian statistics an…
Improved Hamiltonian simulation via a truncated Taylor series and corrections
Leonardo Novo, Dominic W. Berry
We describe an improved version of the quantum simulation method based on the implementation of a truncated Taylor series of the evolution operator. The idea is to add an extra ste…
Adaptive phase estimation with two-mode squeezed-vacuum and parity measurement
Zixin Huang, Keith R. Motes, Petr M. Anisimov +2
A proposed phase-estimation protocol based on measuring the parity of a two-mode squeezed-vacuum state at the output of a Mach-Zehnder interferometer shows that the Cramér-Rao sens…
A Quantum Optics Argument for the #P-hardness of a Class of Multidimensional Integrals
Peter P. Rohde, Dominic W. Berry, Keith R. Motes +1
Matrix permanents arise naturally in the context of linear optical networks fed with nonclassical states of light. In this letter we tie the computational complexity of a class of…
Corrected quantum walk for optimal Hamiltonian simulation
Dominic W. Berry, Leonardo Novo
We describe a method to simulate Hamiltonian evolution on a quantum computer by repeatedly using a superposition of steps of a quantum walk, then applying a correction to the weigh…
Quantum enhanced spectroscopy with entangled multi-photon states
Hossein T. Dinani, Manish K. Gupta, Jonathan P. Dowling +1
Traditionally, spectroscopy is performed by examining the position of absorption lines. However, at frequencies near the transition frequency, additional information can be obtaine…