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Vernon Hughes Memorial Lecture – Yale University

Tue, 2014-05-13 15:35 - Christian Gross

New Haven (USA), 24 March 2014
Immanuel Bloch (MPQ) “Controlling and Exploring Quantum Matter at the Single Atom Level”

Condensed Matter Physics Seminar – Harvard University

Tue, 2014-05-13 15:34 - Christian Gross

Cambridge (USA), 10 April 2014,
Immanuel Bloch (MPQ) “From Topological Bloch Bands to Long-Range Interacting Rydberg Crystals”

Milan Physics Collquium – Milan University

Tue, 2014-05-13 15:29 - Christian Gross

Milan (Italy), 15 April 2014,
Immanuel Bloch (MPQ) “Controlling and Exploring Quantum Matter at the Single Atom Level”

Crystallization in Ising quantum magnets

Tue, 2014-05-13 15:24 - Christian Gross
Date: 
2015-03-27
Author(s): 

Peter Schauß, Johannes Zeiher, Takeshi Fukuhara, Sebastian Hild, Marc Cheneau, Tommaso Macrì, Thomas Pohl, Immanuel Bloch, Christian Gross

Reference: 

Science 347, 1455–1458 (2015)

URL: 

http://www.sciencemag.org/content/347/6229/1455

Emergence of coherence and the dynamics of quantum phase transitions

Tue, 2014-05-13 15:21 - Christian Gross
Date: 
2015-03-24
Author(s): 

S. Braun, M. Friesdorf, S.S. Hodgman, M. Schreiber, J.P. Ronzheimer, A. Riera, M. del Rey, I. Bloch, J. Eisert, U. Schneider

Reference: 

PNAS 112, 3641–3646 (2015)

URL: 

http://www.pnas.org/content/112/12/3641

Observation of chiral currents with ultracold atoms in bosonic ladders

Tue, 2014-05-13 15:18 - Christian Gross
Date: 
2014-07-06
Author(s): 

M. Atala , M. Aidelsburger , M. Lohse, J. T. Barreiro , B. Paredes & I. Bloch

Reference: 

Nat. Phys. 10, 588–593 (2014)

URL: 

http://www.nature.com/nphys/journal/v10/n8/full/nphys2998.html

Macroscopic Optomechanics from Displaced Single-Photon Entanglement

Mon, 2014-05-12 09:27 - Rob Thew
Date: 
2014-02-27 - 2014-05-12
Author(s): 

Pavel Sekatski, Markus Aspelmeyer, Nicolas Sangouard

Reference: 

Phys. Rev. Lett. 112, 080502 (2014)

URL: 

http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.080502

Displaced single-photon entanglement is a simple form of optical entanglement, obtained by sending a photon on a beamsplitter and subsequently applying a displacement operation.

Cavity-enhanced storage in an optical spin-wave memory

Mon, 2014-05-12 09:20 - Rob Thew
Date: 
2014-08-04
Author(s): 

Pierre Jobez, Imam Usmani, Nuala Timoney, Cyril Laplane, Nicolas Gisin, Mikael Afzelius

Reference: 

New Journal of Physics 16 (2014) 083005

URL: 

http://iopscience.iop.org/1367-2630/16/8/083005/

We report on the experimental demonstration of an optical spin-wave memory, based on the atomic frequency comb (AFC) scheme, where the storage efficiency is strongly enhanced by an optical cavity. The cavity is of low finesse, but operated in an impedance matching regime to achieve high absorption in our intrinsically low-absorbing Eu3+:Y2SiO5 crystal.

Challenging preconceptions about Bell tests with photon pairs

Mon, 2014-05-12 09:12 - Rob Thew
Date: 
2015-01-14
Author(s): 

V. Caprara Vivoli, P. Sekatski, J.-D. Bancal, C.C.W. Lim, B.G. Christensen, A. Martin, R.T. Thew, H. Zbinden, N. Gisin, N. Sangouard

Reference: 

Phys. Rev. A 91, 012107 (2015)

URL: 

http://journals.aps.org/pra/abstract/10.1103/PhysRevA.91.012107

Motivated by very recent experiments, we consider a scenario "\`a la Bell" in which two protagonists test the Clauser-Horne-Shimony-Holt (CHSH) inequality using a photon-pair source based on spontaneous parametric down conversion and imperfect photon detectors.

Generation of tunable wavelength coherent states and heralded single photons for quantum optics applications

Mon, 2014-05-12 08:57 - Rob Thew
Date: 
2014-09-15
Author(s): 

N. Bruno, A. Martin, R. T. Thew

Reference: 

Optics Communications 327 17 (2014)

URL: 

http://www.sciencedirect.com/science/article/pii/S0030401814001576

Quantum optics experiments frequently involve interfering single photons and coherent states. In the case of multi-photon experiments this requires that all photons are frequency degenerate. We report a simple and practical approach to generate coherent states that can be readily tuned to any wavelength required, for example by non-degenerate photon pair creation.

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