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5 papers · 2 filters
Experimental observation of superluminal group velocities in bulk two-dimensional photonic bandgap crystals
D. R. Solli, C. F. McCormick, R. Y. Chiao +1
We have experimentally observed superluminal and infinite group velocities in bulk hexagonal two-dimensional photonic bandgap crystals with bandgaps in the microwave region. The gr…
Collinear optical weak measurements with photonic crystals
D. R. Solli, C. F. McCormick, S. Popescu +2
We present a theoretical and experimental study of a photonic crystal based optical system in terms of weak values that map polarization states onto longitudinal spatial position a…
An Explicit Universal Gate-set for Exchange-Only Quantum Computation
M. Hsieh, J. Kempe, S. Myrgren +1
A single physical interaction might not be universal for quantum computation in general. It has been shown, however, that in some cases it can generate universal quantum computatio…
Comment on "Quantum identification schemes with entanglements"
Wim van Dam
In a recent paper, [Phys. Rev. A 65, 052326 (2002)], Mihara presented several cryptographic protocols that were claimed to be quantum mechanical in nature. In this comment it is po…
Quantum Symmetrically-Private Information Retrieval
Iordanis Kerenidis, Ronald de Wolf
Private information retrieval systems (PIRs) allow a user to extract an item from a database that is replicated over k>=1 servers, while satisfying various privacy constraints. We…