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Showing 1 to 12 of 358 entries
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Deterministic implementation of a bright, on-demand single photon source with near-unity indistinguishability via quantum dot imaging.

Optica

He YM, Liu J, Maier S, Emmerling M, Gerhardt S, Davanço M, Srinivasan K, Schneider C, Höfling S.
PMID: 28894770
Optica. 2017 Jul 20;4(7):802-808. doi: 10.1364/OPTICA.4.000802. Epub 2017 Jul 17.

Deterministic techniques enabling the implementation and engineering of bright and coherent solid-state quantum light sources are key for the reliable realization of a next generation of quantum devices. Such a technology, at best, should allow one to significantly scale...

Lewis acid catalyzed sulfur transfer from a sultene to strained cyclic alkenes.

Organic letters

Adam W, Fröhling B.
PMID: 11843601
Org Lett. 2002 Feb 21;4(4):599-602. doi: 10.1021/ol017203s.

[reaction: see text] Sultene 1 reacts with cyclic alkenes under mild Lewis acid catalysis to form thiiranes diastereoselectively. With 1-methoxycyclooctene as sulfur acceptor, an unexpected insertion product is formed, which provides valuable mechanistic insight into the sulfur-transfer process.

Tonks-Girardeau gas of ultracold atoms in an optical lattice.

Nature

Paredes B, Widera A, Murg V, Mandel O, Fölling S, Cirac I, Shlyapnikov GV, Hänsch TW, Bloch I.
PMID: 15152247
Nature. 2004 May 20;429(6989):277-81. doi: 10.1038/nature02530.

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 experimental realization; in such a gas, the repulsive interactions...

Probing number squeezing of ultracold atoms across the superfluid-Mott insulator transition.

Physical review letters

Gerbier F, Fölling S, Widera A, Mandel O, Bloch I.
PMID: 16606244
Phys Rev Lett. 2006 Mar 10;96(9):090401. doi: 10.1103/PhysRevLett.96.090401. Epub 2006 Mar 06.

The evolution of on-site number fluctuations of ultracold atoms in optical lattices is experimentally investigated by monitoring the suppression of spin-changing collisions across the superfluid-Mott insulator transition. For low atom numbers, corresponding to an average filling factor close to...

[Not Available].

Schmerz (Berlin, Germany)

Höfling S.
PMID: 18415303
Schmerz. 1988 Jun;2(2):105. doi: 10.1007/BF02528689.

No abstract available.

Counting atoms using interaction blockade in an optical superlattice.

Physical review letters

Cheinet P, Trotzky S, Feld M, Schnorrberger U, Moreno-Cardoner M, Fölling S, Bloch I.
PMID: 18851591
Phys Rev Lett. 2008 Aug 29;101(9):090404. doi: 10.1103/PhysRevLett.101.090404. Epub 2008 Aug 29.

We report on the observation of an interaction blockade effect for ultracold atoms in optical lattices, analogous to the Coulomb blockade observed in mesoscopic solid state systems. When the lattice sites are converted into biased double wells, we detect...

Failure mechanisms of silicon-based atom-probe tips.

Ultramicroscopy

Kölling S, Vandervorst W.
PMID: 19162397
Ultramicroscopy. 2009 Apr;109(5):486-91. doi: 10.1016/j.ultramic.2008.11.013. Epub 2008 Dec 06.

Atom-probe (AP) analysis of silicon based samples frequently fail due to rupture of the tip. We have investigated the stability and failure mechanisms of silicon tips when prepared for AP analysis via Focused Ion Beam (FIB) milling. We observed...

A quantum gas microscope for detecting single atoms in a Hubbard-regime optical lattice.

Nature

Bakr WS, Gillen JI, Peng A, Fölling S, Greiner M.
PMID: 19890326
Nature. 2009 Nov 05;462(7269):74-7. doi: 10.1038/nature08482.

Recent years have seen tremendous progress in creating complex atomic many-body quantum systems. One approach is to use macroscopic, effectively thermodynamic ensembles of ultracold atoms to create quantum gases and strongly correlated states of matter, and to analyse the...

On the ambiguity of 1,3,2-benzodiazaboroles as donor/acceptor functionalities in luminescent molecules.

Dalton transactions (Cambridge, England : 2003)

Weber L, Halama J, Hanke K, Böhling L, Brockhinke A, Stammler HG, Neumann B, Fox MA.
PMID: 24366446
Dalton Trans. 2014 Feb 28;43(8):3347-63. doi: 10.1039/c3dt52836g.

A series of 1,3-bis(perfluoroaryl)-2-(hetero)aryl-1,3,2-benzodiazaboroles, 1,3-(F)Ar2-2-Ar-1,3,2-N2BC6H4 (Ar = Ph, (F)Ar = C6F5 5; Ar = Ph, (F)Ar = 4-C5F4N 6; Ar = Ph, (F)Ar = 4-NCC6F4 7; Ar = 2-C4H3S, (F)Ar = C6F5 8; Ar = 2-C4H3S, (F)Ar = 4-C5F4N...

Pulsed nuclear pumping and spin diffusion in a single charged quantum dot.

Physical review letters

Ladd TD, Press D, De Greve K, McMahon PL, Friess B, Schneider C, Kamp M, Höfling S, Forchel A, Yamamoto Y.
PMID: 20867546
Phys Rev Lett. 2010 Sep 03;105(10):107401. doi: 10.1103/PhysRevLett.105.107401. Epub 2010 Sep 02.

We report the observation of a feedback process between the nuclear spins in a single charged quantum dot under coherently pulsed optical excitation and its trion transition. The optical pulse sequence intersperses resonant narrow-band pumping for spin initialization with...

Creation of orbital angular momentum states with chiral polaritonic lenses.

Physical review letters

Dall R, Fraser MD, Desyatnikov AS, Li G, Brodbeck S, Kamp M, Schneider C, Höfling S, Ostrovskaya EA.
PMID: 25432029
Phys Rev Lett. 2014 Nov 14;113(20):200404. doi: 10.1103/PhysRevLett.113.200404. Epub 2014 Nov 12.

Controlled transfer of orbital angular momentum to an exciton-polariton Bose-Einstein condensate spontaneously created under incoherent, off resonant excitation conditions is a long-standing challenge in the field of microcavity polaritonics. We demonstrate, experimentally and theoretically, a simple and efficient approach...

Site-controlled growth of InP/GaInP quantum dots on GaAs substrates.

Nanotechnology

Baumann V, Stumpf F, Steinl T, Forchel A, Schneider C, Höfling S, Kamp M.
PMID: 22922443
Nanotechnology. 2012 Sep 21;23(37):375301. doi: 10.1088/0957-4484/23/37/375301. Epub 2012 Aug 24.

A technology platform for the epitaxial growth of site-controlled InP quantum dots (QDs) on GaAs substrates is presented. Nanoholes are patterned in a GaInP layer on a GaAs substrate by electron beam lithography and dry chemical etching, serving as...

Showing 1 to 12 of 358 entries