5 citations · 9 across the 2 of their papers we have counts for
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quant-ph2020★ 5 cited
Universal Translationally-Invariant Hamiltonians
Stephen Piddock, Johannes Bausch
In this work we extend the notion of universal quantum Hamiltonians to the setting of translationally-invariant systems. We present a construction that allows a two-dimensional spi…
quant-ph2019★ 4 cited
Quantum walk search algorithms and effective resistance
Stephen Piddock
We consider the problem of finding a marked vertex in a graph from an arbitrary starting distribution, using a quantum walk based algorithm. We work in the framework introduced by…
quant-ph2019
Hardness and Ease of Curing the Sign Problem for Two-Local Qubit Hamiltonians
Joel Klassen, Milad Marvian, Stephen Piddock +3
We examine the problem of determining whether a multi-qubit two-local Hamiltonian can be made stoquastic by single-qubit unitary transformations. We prove that when such a Hamilton…