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- University of California, Santa BarbaraUS109 papers
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Showing 2019 · quant-phShow all
3 papers · 2 filters
quant-ph2019★ 37 cited
Exponential separation between shallow quantum circuits and unbounded fan-in shallow classical circuits
Adam Bene Watts, Robin Kothari, Luke Schaeffer +1
Recently, Bravyi, Gosset, and König (Science, 2018) exhibited a search problem called the 2D Hidden Linear Function (2D HLF) problem that can be solved exactly by a constant-depth…
quant-ph2019★ 100 cited
Downfolding of many-body Hamiltonians using active-space models: extension of the sub-system embedding sub-algebras approach to unitary coupled cluster formalisms
Nicholas P. Bauman, Eric J. Bylaska, Sriram Krishnamoorthy +3
In this paper we outline the extension of recently introduced the sub-system embedding sub-algebras coupled cluster (SES-CC) formalism to the unitary CC formalism. In analogy to th…
quant-ph2019★ 3 cited
The Short Path Algorithm Applied to a Toy Model
M. B. Hastings
We numerically investigate the performance of the short path optimization algorithm on a toy problem, with the potential chosen to depend only on the total Hamming weight to allow…