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- B. López Paredes, Artur Widera, +6 authors Immanuel Bloch
- Nature
- 2004

Strongly correlated quantum systems are among the most intriguing and fundamental systems in physics. One such example is the Tonks–Girardeau gas, proposed about 40 years ago, but until now lacking… (More)

- Norbert Schuch, David Pérez-Garcı́a, Ignacio J Cirac
- 2011

Norbert Schuch,1 David Pérez-Garcı́a,2 and Ignacio Cirac3 1Institute for Quantum Information, California Institute of Technology, MC 305-16, Pasadena, California 91125, USA 2Departamento Analisis… (More)

- J. F. V. Haegeman, David Pérez-García, Ignacio J Cirac, Norbert Schuch
- Physical review letters
- 2012

We introduce an order parameter for symmetry-protected phases in one dimension which allows us to directly identify those phases. The order parameter consists of stringlike operators and swaps, but… (More)

- Norbert Schuch, Ignacio J Cirac, Frank Verstraete
- Physical review letters
- 2008

We determine the computational difficulty of finding ground states of one-dimensional (1D) Hamiltonians, which are known to be matrix product states (MPS). To this end, we construct a class of 1D… (More)

- Jacob Friis Sherson, Hanna Krauter, +4 authors Eugene Simon Polzik
- Nature
- 2006

Quantum teleportation is an important ingredient in distributed quantum networks, and can also serve as an elementary operation in quantum computers. Teleportation was first demonstrated as a… (More)

- Christine A. Muschik, Klemens Hammerer, Eugene Simon Polzik, Ignacio J Cirac
- Physical review letters
- 2013

Most protocols for quantum information processing consist of a series of quantum gates, which are applied sequentially. In contrast, interactions between matter and fields, for example, as well as… (More)

We introduce a new class of states for bosonic quantum fields which extend tensor network states to the continuum and generalize continuous matrix product states (cMPS) to spatial dimensions d ≥ 2.… (More)

- D. Lucas, Lamata Manuel, +6 authors Alan Cabello

For this ArXiv reprint, the introduction and conclusions, in Spanish in the initial version submitted to UAM, were translated into English, and some of the preprints and works in preparation were… (More)

- Joan Poyatos, Ignacio J Cirac, Peter Zoller
- Optics express
- 1998

We show how the dynamics of open quantum systems can be fully characterized by using quantum tomography methods. We apply these methods to the case of an ion trap quantum computer, which does not… (More)