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20 papers · 2 filters
Estimation of classical parameters via continuous probing of complementary quantum observables
Antonio Negretti, Klaus Mølmer
We discuss how continuous probing of a quantum system allows estimation of unknown classical parameters embodied in the Hamiltonian of the system. We generalize the stochastic mast…
Occurrence conditions for two-dimensional Borromean systems
A. G. Volosniev, D. V. Fedorov, A. S. Jensen +1
We search for Borromean three-body systems of identical bosons in two dimensional geometry, i.e. we search for bound three-boson system without bound two-body subsystems. Unlike th…
Generalized Entropies
F. Dupuis, L. Kraemer, P. Faist +2
We study an entropy measure for quantum systems that generalizes the von Neumann entropy as well as its classical counterpart, the Gibbs or Shannon entropy. The entropy measure is…
The Minimal Work Cost of Information Processing
Philippe Faist, Frédéric Dupuis, Jonathan Oppenheim +1
Irreversible information processing cannot be carried out without some inevitable thermodynamical work cost. This fundamental restriction, known as Landauer's principle, is increas…
Qudit Quantum Computation in the Jaynes-Cummings Model
Brian Mischuck, Klaus Mølmer
We have developed methods for performing qudit quantum computation in the Jaynes-Cummings model with the qudits residing in a finite subspace of individual harmonic oscillator mode…
Limits to multipartite entanglement generation with bosons and fermions
Malte C. Tichy, Florian Mintert, Andreas Buchleitner
Many-photon interference in linear-optics setups can be exploited to generate and detect multipartite entanglement. Without recurring to any inter-particle interaction, many entang…