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10 papers · 2 filters
Complete sets of cyclic mutually unbiased bases in even prime power dimensions
Oliver Kern, Kedar S. Ranade, Ulrich Seyfarth
We present a construction method for complete sets of cyclic mutually unbiased bases (MUBs) in Hilbert spaces of even prime power dimensions. In comparison to usual complete sets o…
Atomtronics with holes: Coherent transport of an empty site in a triple well potential
Albert Benseny, Sonia Fernández-Vidal, Joan Bagudà +5
We investigate arrays of three traps with two fermionic or bosonic atoms. The tunneling interaction between neighboring sites is used to prepare multi-site dark states for the empt…
The Uncertainty Principle in the Presence of Quantum Memory
Mario Berta, Matthias Christandl, Roger Colbeck +2
The uncertainty principle, originally formulated by Heisenberg, dramatically illustrates the difference between classical and quantum mechanics. The principle bounds the uncertaint…
Asymptotic Evolution of Random Unitary Operations
J. Novotny, G. Alber, I. Jex
We analyze the asymptotic dynamics of quantum systems resulting from large numbers of iterations of random unitary operations. Although, in general, these quantum operations cannot…
Manipulating mesoscopic multipartite entanglement with atom-light interfaces
Julia Stasińska, Carles Rodó, Simone Paganelli +2
Entanglement between two macroscopic atomic ensembles induced by measurement on an ancillary light system has proven to be a powerful method for engineering quantum memories and qu…
Symmetric extendibility for a class of qudit states
Kedar S. Ranade
The concept of symmetric extendibility has recently drawn attention in the context of tolerable error rates in quantum cryptography, where it can be used to decide whether quantum…