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7 papers · 2 filters
Bound states in the continuum in a single-level Fano-Anderson model
Stefano Longhi
Bound states in the continuum (BIC) are shown to exist in a single-level Fano-Anderson model with a colored interaction between the discrete state and a tight-binding continuum, wh…
Information gain in quantum continual measurements
Albert Barchielli, Giancarlo Lupieri
Inspired by works on information transmission through quantum channels, we propose the use of a couple of mutual entropies to quantify the efficiency of continual measurement schem…
Non-exponential decay via tunneling in tight-binding lattices and the optical Zeno effect
Stefano Longhi
An exactly-solvable model for the decay of a metastable state coupled to a semi-infinite tight-binding lattice, showing large deviations from exponential decay in the strong coupli…
Non-Markovian Decay and Lasing Condition in an Optical Microcavity Coupled to a Structured Reservoir
Stefano Longhi
The decay dynamics of the classical electromagnetic field in a leaky optical resonator supporting a single mode coupled to a structured continuum of modes (reservoir) is theoretica…
Quantum key distribution system clocked at 2 GHz
K. J. Gordon, V. Fernandez, G. S. Buller +3
An improved quantum key distribution test system operating at clock rates of up to 2GHz using a specially adapted commercially available silicon single photon avalanche diode is pr…
Quantum Key Distribution in a Multi-User Network at Gigahertz Clock rates
Veronica Fernandez, Karen J. Gordon, Robert J. Collins +4
In recent years quantum information research has lead to the discovery of a number of remarkable new paradigms for information processing and communication. These developments incl…