Resultats globals: 12 registres trobats en 0.03 segons.
Articles, 12 registres trobats
Articles 12 registres trobats  1 - 10següent  anar al registre:
1.
6 p, 528.3 KB Generalized laws of thermodynamics in the presence of correlations / Bera, Manabendra N. (Universitat Politècnica de Catalunya. Institut de Ciències Fotòniques) ; Riera, Arnau (Universitat Politècnica de Catalunya. Institut de Ciències Fotòniques) ; Lewenstein, Maciej (Universitat Politècnica de Catalunya. Institut de Ciències Fotòniques) ; Winter, Andreas (Universitat Autònoma de Barcelona. Departament de Física)
The laws of thermodynamics, despite their wide range of applicability, are known to break down when systems are correlated with their environments. Here we generalize thermodynamics to physical scenarios which allow presence of correlations, including those where strong correlations are present. [...]
2017 - 10.1038/s41467-017-02370-x
Nature communications, Vol. 8 (2017) , art. 2180
2 documents
2.
11 p, 385.0 KB Quantum computing in optical microtraps based on the motional states of neutral atoms / Eckert, Kai (University of Hannover. Institute of Theoretical Physics) ; Mompart Penina, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ; Yi, X. X. (University of Hannover. Institute of Theoretical Physics) ; Schliemann, J. (University of Basel. Department of Physics and Astronomy) ; Bruß, D. (University of Hannover. Institute of Theoretical Physics) ; Birkl, Gerhard (University of Hannover. Institute of Quantum Optics) ; Lewenstein, Maciej (University of Hannover. Institute of Theoretical Physics) ; American Physical Society
We investigate quantum computation with neutral atoms in optical microtraps where the qubit is implemented in the motional states of the atoms, i. e. , in the two lowest vibrational states of each trap. [...]
2002 - 10.1103/PhysRevA.66.042317
Physical review. A, Vol. 66, Issue 4 (October 2002) , p. 042317-1-042317-11  
3.
5 p, 435.2 KB Three-level atom optics via the tunneling interaction / Eckert, Kai (University of Hannover. Institute of Theoretical Physics) ; Lewenstein, Maciej (University of Hannover. Institute of Theoretical Physics) ; Corbalán, R. (Ramón) (Universitat Autònoma de Barcelona. Departament de Física) ; Birkl, Gerhard (University of Hannover. Institute of Quantum Optics) ; Ertmer, W. (University of Hannover. Institute of Quantum Optics) ; Mompart Penina, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ; American Physical Society
Three-level atom optics is introduced as a simple, efficient, and robust method to coherently manipulate and transport neutral atoms. The tunneling interaction among three trapped states allows us to realize the spatial analog of the stimulated Raman adiabatic passage, coherent population trapping, and electromagnetically induced transparency techniques and offers a wide range of possible applications. [...]
2004 - 10.1103/PhysRevA.70.023606
Physical review. A, Vol. 70, Issue 2 (August 2004) , p. 023606-1-023606-5  
4.
9 p, 817.9 KB One- and two-dimensional quantum walks in arrays of optical traps / Eckert, Kai (University of Hannover. Institute of Theoretical Physics) ; Mompart Penina, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ; Birkl, Gerhard (Universität Darmstadt. Institut für Angewandte Physik, Technische) ; Lewenstein, Maciej (University of Hannover. Institute of Theoretical Physics) ; American Physical Society
We propose a different implementation of discrete-time quantum walks for a neutral atom in an array of optical microtraps or an optical lattice. We analyze a one-dimensional walk in position space, with the coin, the additional qubit degree of freedom that controls the displacement of the quantum walker, implemented as a spatially delocalized qubit, i. [...]
2005 - 10.1103/PhysRevA.72.012327
Physical review. A, Vol. 72, Issue 1 (July 2005) , p. 012327-1-012327-9  
5.
25 p, 976.0 KB Disordered ultracold atomic gases in optical lattices : a case study of Fermi-Bose mixtures / Ahufinger, Verònica (Universitat Autònoma de Barcelona. Departament de Física) ; Sánchez Palencia, L. (University of Hannover. Institute of Theoretical Physics) ; Kantian, A. (University of Hannover. Institute of Theoretical Physics) ; Sanpera Trigueros, Anna (Universitat Autònoma de Barcelona. Departament de Física) ; Lewenstein, Maciej (University of Hannover. Institute of Theoretical Physics) ; American Physical Society
We present a review of properties of ultracold atomic Fermi-Bose mixtures in inhomogeneous and random optical lattices. In the strong interacting limit and at very low temperatures, fermions form, together with bosons or bosonic holes, composite fermions. [...]
2005 - 10.1103/PhysRevA.72.063616
Physical review. A, Vol. 72, Issue 6 (December 2005) , p. 063616-1-063616-25  
6.
8 p, 236.2 KB Quantum-information processing in disordered and complex quantum systems / Sen, Aditi (Institut de Ciències Fotòniques (Castelldefels, Catalunya)) ; Sen, Ujjval (Institut de Ciències Fotòniques (Castelldefels, Catalunya)) ; Ahufinger, Verònica (Universitat Autònoma de Barcelona. Departament de Física) ; Briegel, Hans J. (Österreichische Akademie der Wissenschaften. Institut für Quantenoptik und Quanteninformation) ; Sanpera Trigueros, Anna (Universitat Autònoma de Barcelona. Departament de Física) ; Lewenstein, Maciej (University of Hannover. Institute of Theoretical Physics) ; American Physical Society
We study quantum information processing in complex disordered many body systems that can be implemented by using lattices of ultracold atomic gases and trapped ions. We demonstrate, first in the short range case, the generation of entanglement and the local realization of quantum gates in a disordered magnetic model describing a quantum spin glass. [...]
2006 - 10.1103/PhysRevA.74.062309
Physical review. A, Vol. 74, Issue 6 (December 2006) , p. 062309-1-062309-8  
7.
4 p, 200.7 KB Quantum computing with spatially delocalized qubits / Mompart Penina, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ; Eckert, Kai (University of Hannover. Institute of Theoretical Physics) ; Ertmer, W. (University of Hannover. Institute of Quantum Optics) ; Birkl, Gerhard (University of Hannover. Institute of Quantum Optics) ; Lewenstein, Maciej (University of Hannover. Institute of Theoretical Physics) ; American Physical Society
We analyze the operation of quantum gates for neutral atoms with qubits that are delocalized in space, i. e. , the computational basis states are defined by the presence of a neutral atom in the ground state of one out of two trapping potentials. [...]
2003 - 10.1103/PhysRevLett.90.147901
Physical review letters, Vol. 90, Issue 14 (April 2003) , p. 147901  
8.
4 p, 232.3 KB Experimental detection of multipartite entanglement using witness operators / Bourennane, Mohamed (Max-Planck-Institut für Quantenoptik (Garching, Alemanya)) ; Eibl, Manfred (Max-Planck-Institut für Quantenoptik (Garching, Alemanya)) ; Kurtsiefer, Christian (Ludwig-Maximilians-Universität. Sektion Physik) ; Gaertner, Sascha (Max-Planck-Institut für Quantenoptik (Garching, Alemanya)) ; Weinfurter, Harald (Max-Planck-Institut für Quantenoptik (Garching, Alemanya)) ; Gühne, Otfried (Universität Hannover. Institut für Theoretische Physik) ; Hyllus, Philipp (Universität Hannover. Institut für Theoretische Physik) ; Bruß, Dagmar (Universität Hannover. Institut für Theoretische Physik) ; Lewenstein, Maciej (Universität Hannover. Institut für Theoretische Physik) ; Sanpera Trigueros, Anna (Universität Hannover. Institut für Theoretische Physik) ; American Physical Society
We present the experimental detection of genuine multipartite entanglement using entanglement witness operators. To this aim, we introduce a canonical way of constructing and decomposing witness operators so that they can be directly implemented with present technology. [...]
2004 - 10.1103/PhysRevLett.92.087902
Physical review letters, Vol. 92, Issue 8 (February 2004) , p. 087902  
9.
4 p, 104.0 KB Atomic Fermi-Bose mixtures in inhomogeneous and random lattices : From Fermi glass to quantum spin glass and quantum percolation / Sanpera Trigueros, Anna (Institut de Ciències Fotòniques (Barcelona, Catalunya)) ; Kantian, A. (Universität Hannover. Institut für Theoretische Physik) ; Sánchez Palencia, L. (Universität Hannover. Institut für Theoretische Physik) ; Zakrzewski, J. (Uniwersytet Jagiellon'ski. Instytut Fizyki (Cracòvia, Polònia)) ; Lewenstein, Maciej (Institut de Ciències Fotòniques (Barcelona, Catalunya)) ; American Physical Society
We investigate strongly interacting atomic Fermi-Bose mixtures in inhomogeneous and random optical lattices. We derive an effective Hamiltonian for the system and discuss its low temperature physics. [...]
2004 - 10.1103/PhysRevLett.93.040401
Physical review letters, Vol. 93, Issue 4 (July 2004) , p. 040401  
10.
4 p, 233.5 KB Mott insulator states of ultracold atoms in optical resonators / Larson, Jonas (Institut de Ciències Fotòniques) ; Damski, Bogdan (Los Alamos National Laboratory) ; Morigi, Giovanna (Universitat Autònoma de Barcelona. Departament de Física) ; Lewenstein, Maciej (Institució Catalana de Recerca i Estudis Avançats) ; American Physical Society
We study the low temperature physics of an ultracold atomic gas in the potential formed inside a pumped optical resonator. Here, the height of the cavity potential, and hence the quantum state of the gas, depends not only on the pump parameters, but also on the atomic density through a dynamical ac-Stark shift of the cavity resonance. [...]
2008 - 10.1103/PhysRevLett.100.050401
Physical review letters, Vol. 100, Issue 5 (February 2008) , p. 50401  

Articles : 12 registres trobats   1 - 10següent  anar al registre:
Vegeu també: autors amb noms similars
1 Lewenstein, M.
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