7 papers
Detection of patterns in a discrete-outcome sensor network
Pranjal Agarwal, Nada Ali, Mark Hillery
A discrete outcome quantum sensor network is one in which we are only interested in which detectors are activated. This can be studied in either the strong or weak interaction regi…
Experimental quantum state learning with pairs of photons
C. Pria Dobney, Johan Henaff, Allen Kasum +5
Tomography allows one to estimate the density matrix describing the state an ensemble of quantum systems are prepared in (for example, polarization tomography determines the polari…
Quantum-Enhanced Zero-Error Communication and Storage under Positional Uncertainty
Arnau Diebra, David González-Lociga, Mark Hillery +2
Permutation channels model communication and storage scenarios in which the positional identity of the physical carriers is partially or completely lost, so that the transmitted in…
Conditions for 3-partite and 4-partite genuine entanglement
Mark Hillery
A system of three or four particle can be entangled in a number of different ways. It may be the case that only subsets of the particles are entangled, and these subsets are not en…
Quantum Advantage in Identifying the Parity of Permutations with Certainty
Arnau Diebra, Santiago Llorens, David González-Lociga +4
We establish a sharp quantum advantage in determining the parity (even/odd) of an unknown permutation applied to any number of particles. Classically, this is impossible…
Interference and Measurement: Changing amplitude phase information to amplitude magnitude information
Pranjal Agarwal, Nada Ali, Mark Hillery
There are quantum procedures that encode the solutions to a problem in the phases of quantum amplitudes. This happens in some quantum optimization algorithms in which the value of…