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- National Quantum Information Centre in GdanskPL167 papers
- Gdańsk University of TechnologyPL161 papers
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- Nanyang Technological UniversitySG49 papers
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25 papers · 1 filter
Prospect for detecting squeezed states of light created by a single atom in free space
Magdalena Stobińska, Markus Sondermann, Gerd Leuchs
We discuss the possibilities of studying in detail the dynamics of spontaneous emission of a single photon by a single atom and measuring the transient degree of squeezing by means…
Sudden death of effective entanglement
K. Roszak, P. Horodecki, R. Horodecki
Sudden death of entanglement is a well-known effect resulting from the finite volume of separable states. We study the case when the observer has a limited measurement capability a…
Finding Traps in Non-linear Spin Arrays
Marcin Wiesniak, Marcin Markiewicz
Precise knowledge of the Hamiltonian of a system is a key to many of its applications. Tasks such state transfer or quantum computation have been well studied with a linear chain,…
Unified Framework for Correlations in Terms of Local Quantum Observables
A. Acín, R. Augusiak, D. Cavalcanti +5
We provide a unified framework for nonsignalling quantum and classical multipartite correlations, allowing all to be written as the trace of some local (quantum) measurements multi…
Constructive counterexamples to additivity of minimum output Rényi entropy of quantum channels for all p>2
Andrzej Grudka, Michał Horodecki, Łukasz Pankowski
We present a constructive example of violation of additivity of minimum output Rényi entropy for each p>2. The example is provided by antisymmetric subspace of a suitable dimension…
On the connection between mutually unbiased bases and orthogonal Latin squares
T. Paterek, M. Pawlowski, M. Grassl +1
We offer a piece of evidence that the problems of finding the number of mutually unbiased bases (MUB) and mutually orthogonal Latin squares (MOLS) might not be equivalent. We study…