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- Marco Piani, Paweł Horodecki, Ryszard Horodecki
- Physical review letters
- 2008

We prove that the correlations present in a multipartite quantum state have an operational quantum character even if the state is unentangled, as long as it does not simply encode a multipartite classical probability distribution. Said quantumness is revealed by the new task of local broadcasting, i.e., of locally sharing preestablished correlations, which… (More)

- Marco Piani
- Physical review letters
- 2009

We introduce variants of relative entropy of entanglement based on the optimal distinguishability from unentangled states by means of restricted measurements. In this way we are able to prove that the standard regularized entropy of entanglement is strictly positive for all multipartite entangled states. This implies that the asymptotic creation of a… (More)

- Marco Piani, John Watrous
- Physical review letters
- 2015

Steering is the entanglement-based quantum effect that embodies the "spooky action at a distance" disliked by Einstein and scrutinized by Einstein, Podolsky, and Rosen. Here we provide a necessary and sufficient characterization of steering, based on a quantum information processing task: the discrimination of branches in a quantum evolution, which we dub… (More)

- Tan Kee Chuan, Jérémie Maillard, Kavan Modi, Tomasz Paterek, Mauro Paternostro, Marco Piani
- Physical review letters
- 2012

The ability to distribute quantum entanglement is a prerequisite for many fundamental tests of quantum theory and numerous quantum information protocols. Two distant parties can increase the amount of entanglement between them by means of quantum communication encoded in a carrier that is sent from one party to the other. Intriguingly, entanglement can be… (More)

- Antonio Acin, Remigiusz Augusiak, +5 authors Marco Piani
- Physical review letters
- 2010

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 multiplied by an operator. The properties of this operator define the corresponding set of correlations. We then show that if the theory is such that all local quantum measurements are… (More)

- Fernando G. S. L. Brandão, Marco Piani, Paweł Horodecki
- Nature communications
- 2015

Quantum Darwinism posits that only specific information about a quantum system that is redundantly proliferated to many parts of its environment becomes accessible and objective, leading to the emergence of classical reality. However, it is not clear under what conditions this mechanism holds true. Here we prove that the emergence of classical features… (More)

- Jeffrey Czajka, Nada Bsat, +5 authors Carl A. Batt
- Applied and environmental microbiology
- 1993

Differences in the 16S rRNA genes (16S rDNA) which can be used to discriminate Listeria monocytogenes from Listeria innocua have been detected. The 16S rDNA were amplified by polymerase chain reaction with a set of oligonucleotide primers which flank a 1.5-kb fragment. Sequence differences were observed in the V2 region of the 16S rDNA both between L.… (More)

- Marco Piani, Sevag Gharibian, Gerardo Adesso, John Calsamiglia, Paweł Horodecki, Andreas Winter
- Physical review letters
- 2011

We devise a protocol in which general nonclassical multipartite correlations produce a physically relevant effect, leading to the creation of bipartite entanglement. In particular, we show that the relative entropy of quantumness, which measures all nonclassical correlations among subsystems of a quantum system, is equivalent to and can be operationally… (More)

- Fabio Benatti, Roberto Floreanini, Marco Piani
- Physical review letters
- 2003

We show that two, noninteracting two-level systems, immersed in a common bath, can become mutually entangled when evolving according to a Markovian, completely positive reduced dynamics.

- Jonathan Lavoie, Rainer Kaltenbaek, Marco Piani, Kevin J. Resch
- Physical review letters
- 2010

Bound entanglement is central to many exciting theoretical results in quantum information processing, but has thus far not been experimentally realized. In this work, we consider a one-parameter family of four-qubit Smolin states. We experimentally produce these states in the polarization of four optical photons produced from parametric down-conversion.… (More)