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PICC

Physics of Ion Coulomb Crystals

QSim

Wed, 2016-10-05 01:53 - Schaetz
Website: 

https://www.qsim.uni-freiburg.de

Research Type: 
Experiment

experimental quantum simulations based on trapped ions

optically trapping ions

topological defects in Coulomb crystals

Leader: 
Schaetz
  • PICC

Controlling the transport of an ion: classical and quantum mechanical solutions

Fri, 2016-03-04 09:11 - Werner Weiss
Date: 
2014-07-09
Author(s): 

H. A. Fürst, M. H. Goerz, U. G. Poschinger, M. Murphy, S. Montangero, T. Calarco, F. Schmidt-Kaler, K. Singer, C. P. Koch

Reference: 

New J. Phys. 16, 075007 (2014)
http://dx.doi.org/10.1088/1367-2630/16/7/075007

URL: 

http://iopscience.iop.org/article/10.1088/1367-2630/16/7/075007

  • H2020
  • QIPC
  • PICC
  • 15.10.Ie Ions: electronic states
  • Result
  • SIQS
  • 15.10.Iv Ions: vibrational states
  • 05.70.+o Quantum information & quantum control
  • Other
  • 15.20.Lp Linear Paul traps
  • Read more

Complexity of controlling quantum many-body dynamics

Fri, 2016-03-04 09:05 - Werner Weiss
Date: 
2014-04-23
Author(s): 

T. Caneva, A. Silva, R. Fazio, S. Lloyd, T. Calarco, and S. Montangero

Reference: 

Phys. Rev. A 89, 042322 (2014)
http://dx.doi.org/10.1103/PhysRevA.89.042322

URL: 

http://journals.aps.org/pra/abstract/10.1103/PhysRevA.89.042322

We demonstrate that arbitrary time evolutions of many-body quantum systems can be reversed even in cases when only part of the Hamiltonian can be controlled. The reversed dynamics obtained via optimal control—contrary to standard time-reversal procedures—is extremely robust to external sources of noise. We provide a lower bound on the control complexity of a many-body quantum dynamics in terms of the dimension of the manifold supporting it, elucidating the role played by integrability in this context.

  • 12.10.+i Simulations of many-body interactions
  • 13.10.+n Effects of noise and imperfections
  • H2020
  • QIPC
  • PICC
  • SOLID
  • Result
  • SIQS
  • 05.70.+o Quantum information & quantum control
  • 13.80.+a Errors and chaos

Bosonic Josephson Junction Controlled by a Single Trapped Ion

Mon, 2012-11-12 14:49 - Marc Lapert
Date: 
2012-08-22
Author(s): 

R. Gerritsma, A. Negretti, H. Doerk, Z. Idziaszek, T. Calarco, and F. Schmidt-Kaler

Reference: 

Phys. Rev. Lett. 109, 080402 (2012)

URL: 

http://arxiv.org/abs/1112.3509

We theoretically investigate the properties of a double-well bosonic Josephson junction coupled to a single trapped ion. We find that the coupling between the wells can be controlled by the internal state of the ion, which can be used for studying mesoscopic entanglement between the two systems and to measure their interaction with high precision. As a particular example we consider a single 87Rb atom and a small Bose-Einstein condensate controlled by a single 171Yb+ ion.

  • AQUTE
  • 03. ENTANGLEMENT
  • PICC
  • Quantum Information Theory
  • 16.10.Jn Josephson nanodevices
  • Result
  • 15.10.Iv Ions: vibrational states
  • 17.80.+h Hybrid systems
  • Read more

Grupo de Informacion y Computacion Cuanticas (GICC), Facultad de Fisicas (Univ. Complutense Madrid)

Fri, 2010-10-15 09:16 - Miguel A. Martin-Delgado
Website: 

http://www.ucm.es/info/giccucm/index.php/GICC.html

Research Type: 
Theory
Leader: 
Miguel A. Martin-Delgado
  • PICC
  • Quantum Information Theory
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