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14 papers · 2 filters
Large baseline optical imaging assisted by single photons and linear quantum optics
Marta Maria Marchese, Pieter Kok
In this work, we show that by combining quantum metrology and networking tools, it is possible to extend the baseline of an interferometric optical telescope and thus improve diffr…
Mind the gap: Achieving a super-Grover quantum speedup by jumping to the end
Alexander M. Dalzell, Nicola Pancotti, Earl T. Campbell +1
We present a quantum algorithm that has rigorous runtime guarantees for several families of binary optimization problems, including Quadratic Unconstrained Binary Optimization (QUB…
Spin-augmented observables for efficient photonic quantum error correction
Elena Callus, Pieter Kok
We demonstrate that the spin state of solid-state emitters inside micropillar cavities can serve as measure qubits in syndrome measurements. The photons, acting as data qubits, int…
Parallel window decoding enables scalable fault tolerant quantum computation
Luka Skoric, Dan E. Browne, Kenton M. Barnes +2
Large-scale quantum computers have the potential to hold computational capabilities beyond conventional computers for certain problems. However, the physical qubits within a quantu…
Tight Cramér-Rao type bounds for multiparameter quantum metrology through conic programming
Masahito Hayashi, Yingkai Ouyang
In the quest to unlock the maximum potential of quantum sensors, it is of paramount importance to have practical measurement strategies that can estimate incompatible parameters wi…
Calculating Concentratable Entanglement in Graph States
Alice R. Cullen, Pieter Kok
We propose a method to calculate the purity of reduced states of graph states entirely within the stabilizer formalism, using only the stabilizer generators for a given state. We a…