89 citations
- Imperial College LondonGB3 papers
- NTT Basic Research LaboratoriesJP2 papers
- University of FreiburgDE2 papers
- Center for Theoretical Biological PhysicsUS1 paper
- Centre National de la Recherche ScientifiqueFR1 paper
- Institute of Microelectronics Technology and High Purity MaterialsRU1 paper
- Japan Science and Technology AgencyJP1 paper
- Johannes Gutenberg University MainzDE1 paper
- Laboratoire de physique des SolidesFR1 paper
- Max Planck Institute for Polymer ResearchDE1 paper
- Mexican Institute of PetroleumMX1 paper
- Pontifícia Universidade Católica do Rio de JaneiroBR1 paper
5 papers · 1 filter
Commutator Relations Reveal Solvable Structures in Unambiguous State Discrimination
M. Kleinmann, H. Kampermann, Ph. Raynal +1
We present a criterion, based on three commutator relations, that allows to decide whether two self-adjoint matrices with non-overlapping support are simultaneously unitarily simil…
A Decomposition of Separable Werner States
R. G. Unanyan, H. Kampermann, D. Bruss
We derive an integral convex combination of product states for a range of separable Werner states. Our method consists of expanding the sought-after local density operators in term…
Physical Purification of Quantum States
M. Kleinmann, H. Kampermann, T. Meyer +1
We introduce the concept of a physical process that purifies a mixed quantum state, taken from a set of states, and investigate the conditions under which such a purification map e…
Nanoscale atomic waveguides with suspended carbon nanotubes
V. Peano, M. Thorwart, A. Kasper +1
We propose an experimentally viable setup for the realization of one-dimensional ultracold atom gases in a nanoscale magnetic waveguide formed by single doubly-clamped suspended ca…
On the generalization of quantum state comparison
M. Kleinmann, H. Kampermann, D. Bruss
We investigate the unambiguous comparison of quantum states in a scenario that is more general than the one that was originally suggested by Barnett et al. First, we find the optim…