10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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13 papers · 2 filters
Errors in quantum tomography: diagnosing systematic versus statistical errors
Nathan K. Langford
A prime goal of quantum tomography is to provide quantitatively rigorous characterisation of quantum systems, be they states, processes or measurements, particularly for the purpos…
Entanglement generation in a system of two atomic quantum dots coupled to a pool of interacting bosons
Anna Posazhennikova, Reinhard Birmuske, Martin Bruderer +1
We discuss entanglement generation in a closed system of one or two atomic quantum dots (qubits) coupled via Raman transitions to a pool of cold interacting bosons. The system exhi…
Boson Sampling on a Photonic Chip
Justin B. Spring, Benjamin J. Metcalf, Peter C. Humphreys +11
While universal quantum computers ideally solve problems such as factoring integers exponentially more efficiently than classical machines, the formidable challenges in building su…
Unconditionally secure device-independent quantum key distribution with only two devices
Jonathan Barrett, Roger Colbeck, Adrian Kent
Device-independent quantum key distribution is the task of using uncharacterized quantum devices to establish a shared key between two users. If a protocol is secure regardless of…
Multi-photon quantum interference in a multi-port integrated photonic device
Benjamin J. Metcalf, Nicholas Thomas-Peter, Justin B. Spring +11
Increasing the complexity of quantum photonic devices is essential for many optical information processing applications to reach a regime beyond what can be classically simulated,…
The Implications of Ignorance for Quantum Error Correction Thresholds
Alastair Kay
Quantum error correcting codes have a distance parameter, conveying the minimum number of single spin errors that could cause error correction to fail. However, the success thresho…
Enhancing multiphoton rates with quantum memories
J. Nunn, N. K. Langford, W. S. Kolthammer +6
Single photons are a vital resource for optical quantum information processing. Efficient and deterministic single photon sources do not yet exist, however. To date, experimental d…
Comparisons between quantum state distinguishability measures
Koenraad M. R. Audenaert
We provide a compendium of inequalities between several quantum state distinguishability measures. For each measure these inequalities consist of the sharpest possible upper and lo…
Simulating Quantum Fields with Cavity QED
Sean Barrett, Klemens Hammerer, Sarah Harrison +2
As the realization of a fully operational quantum computer remains distant, quantum simulation, whereby one quantum system is engineered to simulate another, becomes a key goal of…
Quantum state discrimination bounds for finite sample size
Koenraad M. R. Audenaert, Milan Mosonyi, Frank Verstraete
In the problem of quantum state discrimination, one has to determine by measurements the state of a quantum system, based on the a priori side information that the true state is on…
Multi-pulse addressing of a Raman quantum memory: configurable beam splitting and efficient readout
K. F. Reim, J. Nunn, X. -M. Jin +6
Quantum memories are vital to the scalability of photonic quantum information processing (PQIP), since the storage of photons enables repeat-until-success strategies. On the other…
Distinct Quantum States Can Be Compatible with a Single State of Reality
Peter G. Lewis, David Jennings, Jonathan Barrett +1
Perhaps the quantum state represents information about reality, and not reality directly. Wave function collapse is then possibly no more mysterious than a Bayesian update of a pro…
Memory Attacks on Device-Independent Quantum Cryptography
Jonathan Barrett, Roger Colbeck, Adrian Kent
Device-independent quantum cryptographic schemes aim to guarantee security to users based only on the output statistics of any components used, and without the need to verify their…