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- University of WaterlooCA402 papers
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30 papers · 2 filters
The complexity of simulating constant-depth BosonSampling
Daniel J. Brod
BosonSampling is a restricted model of quantum computation proposed recently, where a non-adaptive linear-optical network is used to solve a sampling problem that seems to be hard…
Experimental Estimation of Average Fidelity of a Clifford Gate on a 7-qubit Quantum Processor
Dawei Lu, Hang Li, Denis-Alexandre Trottier +8
Quantum gates in experiment are inherently prone to errors that need to be characterized before they can be corrected. Full characterization via quantum process tomography is impra…
Quantum annealing: the fastest route to quantum computation?
C. R. Laumann, R. Moessner, A. Scardicchio +1
In this review we consider the performance of the quantum adiabatic algorithm for the solution of decision problems. We divide the possible failure mechanisms into two sets: small…
Fast convergence of imaginary time evolution tensor network algorithms by recycling the environment
Ho N. Phien, Ian P. McCulloch, Guifré Vidal
We propose an environment recycling scheme to speed up a class of tensor network algorithms that produce an approximation to the ground state of a local Hamiltonian by simulating a…
Perfect Zeno-like effect through imperfect measurements at a finite frequency
David Layden, Eduardo Martin-Martinez, Achim Kempf
The quantum Zeno effect is usually thought to require infinitely frequent and perfect projective measurements to freeze the dynamics of quantum states. We show that perfect freezin…
Is the quantum state real? An extended review of -ontology theorems
M. S. Leifer
Towards the end of 2011, Pusey, Barrett and Rudolph derived a theorem that aimed to show that the quantum state must be ontic (a state of reality) in a broad class of realist appro…