Concept

Quantum entanglement

Related publications (253)

Large Charge Extraction from Metallic Multifilamentary Nb3Sn Photocathode

Christoph Peter Hauri, Fernando Ardana Lamas

The current density limit for photoemission from metals was measured in an rf photogun to be below 10(9) A/m(2). We have achieved 1.6 x 10(11) A/m(2) by photofield emission from a new type of photocathode made from a metallic-composite, multifilamentary Nb ...

2012

Combination of DQ and ZQ Coherences for Sensitive Through-Bond NMR Correlation Experiments in Biosolids under Ultra-Fast MAS

David Lyndon Emsley

A double-zero quantum (DZQ)-refocused INADEQUATE experiment is introduced for J-based NMR correlations under ultra-fast (60 kHz) magic angle spinning (MAS). The experiment records two spectra in the same dataset, a double quantumsingle quantum (DQ-SQ) and ...

WILEY-V C H VERLAG GMBH2012

Thermal annealing of molecular beam epitaxy-grown InGaN/GaN single quantum well

Nicolas Grandjean, Denis Martin, Nils Asmus Kristian Kaufmann

The effect of thermal annealing on In0.25Ga0.75N/GaN quantum wells grown by molecular beam epitaxy at 550 degrees C is investigated. A strong increase in the 300 K photoluminescence (PL) intensity is observed for samples annealed at 880 degrees C, while de ...

Iop Publishing Ltd2012

Local volume depletion/accumulation in GAA Si nanowire junctionless nMOSFETs

Mihai Adrian Ionescu, Jean-Michel Sallese, Wladyslaw Grabinski, Mohammad Najmzadeh, Matthieu Berthomé

In this paper, we report, for the first time, corner effect analysis in the gate-all-around equilateral triangular silicon nanowire (NW) junctionless (JL) nMOSFETs, from subthreshold to strong accumulation regime. Corners were found to accumulate and deple ...

Institute of Electrical and Electronics Engineers2012

Penrose-Onsager Criterion Validation in a One-Dimensional Polariton Condensate

Benoît Marie Joseph Deveaud, Konstantinos Lagoudakis, Francesco Manni

We perform quantum tomography on one-dimensional polariton condensates, spontaneously occurring in linear disorder valleys in a CdTe planar microcavity sample. By the use of optical interferometric techniques, we determine the first-order coherence functio ...

Amer Physical Soc2012

Exciton confinement and trapping dynamics in double-graded-bandgap quantum nanowires

Elyahou Kapon, Alok Rudra, Pascal Gallo, Justyna Szeszko

We fabricate and study quantum dot structures incorporating quasi-one-dimensional excited states. The structures are realized by graded bandgap GaAs/AlGaAs quantum wires self-formed inside inverted tetrahedral pyramids. The ground state transitions exhibit ...

American Institute of Physics2012

A versatile scheme for read-out and actuation of nanomechanical motion using silica microspheres

Tobias Kippenberg, Emanuel Gavartin

We employ silica microspheres to detect and actuate nanomechanical motion. With Si3N4-nanostrings, we achieve significant passive cooling by radiation pressure. Feedback-cooling enables stable operation at optical powers beyond the parametric-instability t ...

Ieee2012

Rotation studies in electron Internal Transport Barriers on TCV

Olivier Sauter, Basil Duval, Stefano Coda, Alexander Karpushov, Yanis Andrebe, Lucia Isabel Federspiel

This paper reports simultaneous measurements of intrinsic toroidal and poloidal plasma rotation during the evolution of electron Internal Transport Barriers (eITBs) on TCV. A CXRS diagnostic-beam system provides ion parameter profiles for stationary pre-ba ...

2012

Optomechanical sideband cooling of a micromechanical oscillator close to the quantum ground state

Tobias Kippenberg, Albert Schliesser, Emanuel Gavartin, Stefan Alexander Weis

Cooling a mesoscopic mechanical oscillator to its quantum ground state is elementary for the preparation and control of quantum states of mechanical objects. Here, we pre-cool a 70-MHz micromechanical silica oscillator to an occupancy below 200 quanta by t ...

2011

Symmetries and the Polarized Optical Spectra of Exciton Complexes in Quantum Dots

Elyahou Kapon, Alok Rudra, Marc-André Dupertuis, Daniel Oberli

A systematic and simple theoretical approach is proposed to analyze true degeneracies and polarized decay patterns of exciton complexes in semiconductor quantum dots. The results provide reliable spectral signatures for efficient symmetry characterization, ...

2011

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