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- Marcus Huber, Julio I de Vicente
- Physical review letters
- 2013

We explore the structure of multipartite quantum systems which are entangled in multiple degrees of freedom. We find necessary and sufficient conditions for the characterization of tripartite systems and necessary conditions for any number of parties. Furthermore we develop a framework of multilevel witnesses for efficient discrimination and quantification… (More)

- Mario Krenn, Marcus Huber, Robert Fickler, Radek Lapkiewicz, Sven Ramelow, Anton Zeilinger
- Proceedings of the National Academy of Sciences…
- 2014

Entangled quantum systems have properties that have fundamentally overthrown the classical worldview. Increasing the complexity of entangled states by expanding their dimensionality allows the implementation of novel fundamental tests of nature, and moreover also enables genuinely new protocols for quantum information processing. Here we present the… (More)

- Marcus Huber, Florian Mintert, Andreas Gabriel, Beatrix C Hiesmayr
- Physical review letters
- 2010

We derive a general framework to identify genuinely multipartite entangled mixed quantum states in arbitrary-dimensional systems and show in exemplary cases that the constructed criteria are stronger than those previously known. Our criteria are simple functions of the given quantum state and detect genuine multipartite entanglement that had not been… (More)

- Nicolas Brunner, Marcus Huber, Noah Linden, Sandu Popescu, Ralph Silva, Paul Skrzypczyk
- Physical review. E, Statistical, nonlinear, and…
- 2014

Small self-contained quantum thermal machines function without external source of work or control but using only incoherent interactions with thermal baths. Here we investigate the role of entanglement in a small self-contained quantum refrigerator. We first show that entanglement is detrimental as far as efficiency is concerned-fridges operating at… (More)

- Karen V Hovhannisyan, Martí Perarnau-Llobet, Marcus Huber, Antonio Acín
- Physical review letters
- 2013

We consider reversible work extraction from identical quantum systems. From an ensemble of individually passive states, work can be produced only via global unitary (and thus entangling) operations. However, we show here that there always exists a method to extract all possible work without creating any entanglement, at the price of generically requiring… (More)

- Robert Fickler, Radek Lapkiewicz, Marcus Huber, Martin P J Lavery, Miles J Padgett, Anton Zeilinger
- Nature communications
- 2014

Photonics has become a mature field of quantum information science, where integrated optical circuits offer a way to scale the complexity of the set-up as well as the dimensionality of the quantum state. On photonic chips, paths are the natural way to encode information. To distribute those high-dimensional quantum states over large distances, transverse… (More)

- Christoph Spengler, Marcus Huber, Andreas Gabriel, Beatrix C. Hiesmayr
- Quantum Information Processing
- 2013

Entanglement in high-dimensional many-body systems plays an increasingly vital role in the foundations and applications of quantum physics. In the present paper, we introduce a theoretical concept which allows to categorize multipartite states by the number of degrees of freedom being entangled. In this regard, we derive computable and experimentally… (More)

- Tobias Moroder, Oleg Gittsovich, Marcus Huber, Otfried Gühne
- Physical review letters
- 2014

Quantum correlations are at the heart of many applications in quantum information science and, at the same time, they form the basis for discussions about genuine quantum effects and their difference to classical physics. On one hand, entanglement theory provides the tools to quantify correlations in information processing and many results have been… (More)

- Christoph Spengler, Marcus Huber, Stephen Brierley, Theodor Adaktylos, Beatrix C. Hiesmayr
- 2012

Christoph Spengler,1,* Marcus Huber,1,2 Stephen Brierley,2 Theodor Adaktylos,1 and Beatrix C. Hiesmayr1,3 1Faculty of Physics, University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria 2Department of Mathematics, University of Bristol, Bristol BS8 1TW, United Kingdom 3Institute of Theoretical Physics and Astrophysics, Masaryk University, Kotlářská 2,… (More)

- Anton Plech, Uwe Klemradt, Markus Aspelmeyer, Marcus Huber, Johann Peisl
- Physical review. E, Statistical, nonlinear, and…
- 2002

The liquid-solid interface between a silicon substrate and the binary mixture perfluoromethylcyclohexane (PFMC) and 2-propanol (IP) is examined by x-ray specular reflectivity and diffuse scattering under grazing angles. The wetting films between the PFMC-rich phase and the substrate are characterized with respect to the density profile and lateral… (More)