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Tomography and Correlation Function Measurements of Pulsed and Continuous Single Photon Sources

Sat, 2011-03-19 15:20 - Kun Chen
Date: 
2010-10-07 - 2010-10-08
Author(s): 

Andreas Wallraff, Deniz Bozyigit, Christian Lang, Christopher Eichler

Conference/Workshop/Place: 
SOLID Fall Workshop on Interfacing solid state QIP systems, Munich, Germany,
Format: 
Invited Talk

Entangling protocols for two qubits in circuit QED

Sat, 2011-03-19 15:19 - Kun Chen
Date: 
2010-10-07 - 2010-10-09
Author(s): 

L. Steffen, M. Baur, A. Fedorov, J.M. Fink, K. Pakrouski, W. Zeng, A. Wallraff

Conference/Workshop/Place: 
SOLID Fall Workshop on Interfacing solid state QIP systems, Munich, Germany,
Format: 
Poster

Integration of quantum dots with microwave circuits

Sat, 2011-03-19 15:17 - Kun Chen
Date: 
2010-10-07 - 2010-10-08
Author(s): 

T. Frey, P.J. Leek, T. Ihn, K. Ensslin, A. Wallraff

Conference/Workshop/Place: 
SOLID Fall Workshop on Interfacing solid state QIP systems, Munich, Germany,
Format: 
Poster

Tomography and Correlation Function Measurements of Pulsed and Continuous Microwave Single Photon Sources

Sat, 2011-03-19 15:16 - Kun Chen
Date: 
2010-11-11 - 2010-11-13
Author(s): 

A. Wallraff

Conference/Workshop/Place: 
Artificial Atoms in Diamond: From Quantum Physics to Applications, Institute for Theoretical Atomic, Molecular, and Optical Physics (ITAMP) at the Harvard-Smithsonian Center for Astrophysics, Cambridge, MA,
Format: 
Invited Talk

Hybrid Quantum Systems - Circuit QED meets Rydberg atoms

Sat, 2011-03-19 15:14 - Kun Chen
Date: 
2011-01-07 - 2011-01-09
Author(s): 

S. Filipp

Conference/Workshop/Place: 
Swiss Swedish Meeting on ''Quantum Materials and Devices", Les Diableret, Switzerland, January 7 - 9, 2011
Format: 
Invited Talk

Hybrid Quantum Systems using Microwave Frequency On-Chip Resonators as a Coupling Bus (invited NCCR project presentation),

Sat, 2011-03-19 15:11 - Kun Chen
Date: 
2011-01-12 - 2011-01-14
Author(s): 

A. Wallraff

Conference/Workshop/Place: 
NCCR-QSIT Meeting 2011, Arosa, Switzerland
Format: 
Invited Talk

Entangling protocols for two qubits in circuit QED (poster),

Sat, 2011-03-19 15:06 - Kun Chen
Date: 
2011-01-12 - 2011-01-14
Author(s): 

L. Steffen, M. Baur, A. Fedorov, J. M. Fink, K. Pakrouski, W. Zeng and A. Wallraff

Conference/Workshop/Place: 
NCCR-QSIT Meeting 2011, Arosa, Switzerland, January 12-14, 2011
Format: 
Talk

Edge channel mixing induced by potential steps in an integer quantum Hall system

Tue, 2011-02-22 18:46 - Daniel Rudolph
Date: 
2010-08-11
Author(s): 

D. Venturelli, V. Giovannetti, F. Taddei, R. Fazio, D. Feinberg, G. Usaj, C. A. Balseiro

Reference: 

arXiv:1008.1913v1 [cond-mat.mes-hall]

URL: 

http://arxiv.org/abs/1008.1913v1

We investigate the coherent mixing of co-propagating edge channels in a quantum Hall bar produced by step potentials. In the case of two edge channels it is found that, although a single step induces only a few percent mixing, a series of steps could yield 50% mixing. In addition, a strong mixing is found when the potential height of a single step allows a different number of edge channels on the two sides of the step. Charge density probability has been also calculated even for the case where the step is smoothened.

Electronic implementations of interaction-free measurements

Tue, 2011-02-22 18:39 - Daniel Rudolph
Date: 
2010-07-07
Author(s): 

L. Chirolli, E. Strambini, V. Giovannetti, F. Taddei, V. Piazza, R. Fazio, F. Beltram, and G. Burkard

Reference: 

Phys. Rev. B 82, 045403 (2010)

URL: 

http://link.aps.org/doi/10.1103/PhysRevB.82.045403

Entanglement renormalization and boundary critical phenomena

Tue, 2011-02-22 18:37 - Daniel Rudolph
Date: 
2010-03-04
Author(s): 

P. Silvi, V. Giovannetti, P. Calabrese, G.E. Santoro, and R. Fazio

Reference: 

J. Stat. Mech. (2010) L03001

URL: 

http://dx.doi.org/10.1088/1742-5468/2010/03/L03001

In this paper we study interacting quantum systems defined on a one-dimensional lattice with arbitrary boundary conditions, and employ the multiscale entanglement renormalization ansatz to study boundary critical phenomena. We show how to compute the average of any local operator as a function of the distance from the boundary as well as the deviation of the ground state energy due to the presence of the boundary.

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