Showing 2013Show all

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cond-mat.mes-hall2013★ 195 cited

Optical signatures of silicon-vacancy spins in diamond

Tina Muller, Christian Hepp, Benjamin Pingault +7

Colour centres in diamond have emerged as versatile tools for solid-state quantum technologies ranging from quantum information to metrology, where the nitrogen-vacancy centre is t…

physics.ins-det2013★ 29 cited

A new CVD Diamond Mosaic-Detector for (n,) Cross-Section Measurements at the n\_TOF Experiment at CERN

C. Weiss, E. Griesmayer, C. Guerrero +1

At the n\_TOF experiment at CERN a dedicated single-crystal chemical vapor deposition (sCVD) Diamond Mosaic-Detector has been developed for (n,) cross-section measurements. The…

nucl-ex2013★ 29 cited

Quasi-free photoproduction of eta-mesons off 3He nuclei

L. Witthauer, D. Werthmueller, I. Keshelashvili +70

Quasi-free photoproduction of -mesons has been measured off nucleons bound in He nuclei for incident photon energies from the threshold region up to 1.4 GeV. The experiment…

quant-ph2013★ 74 cited

Quantum-limited amplification and parametric instability in the reversed dissipation regime of cavity optomechanics

A. Nunnenkamp, V. Sudhir, A. K. Feofanov +2

Cavity optomechanical phenomena, such as cooling, amplification or optomechanically induced transparency, emerge due to a strong imbalance in the dissipation rates of the parametri…

nucl-ex2013★ 54 cited

First measurement of the helicity asymmetry for in the resonance region

M. Gottschall, A. V. Anisovich, B. Bantes +64

The first measurement of the helicity dependence of the photoproduction cross section of single neutral pions off protons is reported for photon energies from 600 to 2300\,MeV, cov…

cond-mat.mes-hall2013★ 170 cited

Time-Reversal Invariant Parafermions in Interacting Rashba Nanowires

Jelena Klinovaja, Daniel Loss

We propose a scheme to generate pairs of time-reversal invariant parafermions. Our setup consists of two quantum wires with opposite Rashba spin orbit interactions coupled to an $s…

hep-ph2013★ 31 cited

Golden ratio lepton mixing and nonzero reactor angle with

I. de Medeiros Varzielas, L. Lavoura

We furnish a supersymmetric extension of the Standard Model with a flavour discrete symmetry under which the lepton fields transform as an irreducible triplet. Additional (`f…

cond-mat.mes-hall2013★ 27 cited

Fabrication and characterisation of nanospintronic devices

J. Samm, J. Gramich, A. Baumgartner +2

We report an improved fabrication scheme for carbon based nanospintronic devices and demonstrate the necessity for a careful data analysis to investigate the fundamental physical m…

physics.atm-clus2013

Glassy clusters: Relations between their dynamics and characteristic features of their energy landscape

Sandip De, Bastian Schaefer, Ali Sadeghi +3

Based on a recently introduced metric for measuring distances between configurations, we in- troduce distance-energy (DE) plots to characterize the potential energy surface (PES) o…

cond-mat.mes-hall2013★ 106 cited

Parafermions in Interacting Nanowire Bundle

Jelena Klinovaja, Daniel Loss

We propose a scheme to induce parafermion modes, exotic zero-energy bound states that possess non-Abelian statistics. We consider a minimal setup consisting of a bun…

q-bio.TO2013★ 40 cited

Species-specific differences in follicular antral sizes result from diffusion-based limitations on the thickness of the granulosa cell layer

M. Bächler, D. Menshykau, Ch. De Geyter +1

The size of mature oocytes is similar across mammalian species, yet the size of ovarian follicles increases with species size, with some ovarian follicles reaching diameters more t…

nucl-ex2013★ 48 cited

A narrow structure in the excitation function of eta-photoproduction off the neutron

D. Werthmueller, L. Witthauer, I. Keshelashvili +69

The photoproduction of -mesons off nucleons bound in H and He has been measured in coincidence with recoil protons and recoil neutrons for incident photon energies from…

hep-ph2013★ 9 cited

Effects of the imaginary inflaton component in supergravity new inflation

David Nolde

When models of new inflation are implemented in supergravity, the inflaton is a complex and not a real scalar field. As a complex scalar field has two independent components, super…

quant-ph2013★ 22 cited

Prospects for storage and retrieval of a quantum dot single photon in an ultracold Rb ensemble

Matthew T. Rakher, Richard J. Warburton, Philipp Treutlein

Epitaxially grown quantum dots (QDs) are promising sources of non-classical states of light such as single photons and entangled photons. However, in order for them to be used as a…

cond-mat.mes-hall2013★ 94 cited

Non-local spectroscopy of Andreev bound states

Jens Schindele, Andreas Baumgartner, Romain Maurand +2

We experimentally investigate Andreev bound states (ABSs) in a carbon nanotube quantum dot (QD) connected to a superconducting Nb lead (S). A weakly coupled normal metal contact ac…

nucl-ex2013★ 31 cited

High precision In()In elastic scattering at energies around the Coulomb barrier for the astrophysical process

G. G. Kiss, P. Mohr, Zs. Fülöp +9

The process in supernova explosions is thought to explain the origin of proton-rich isotopes between Se and Hg, the so-called nuclei. The majority of the reaction rates for…

cond-mat.mes-hall2013★ 1.3k cited

Magnetometry with nitrogen-vacancy defects in diamond

L. Rondin, J. -P. Tetienne, T. Hingant +3

The isolated electronic spin system of the Nitrogen-Vacancy (NV) centre in diamond offers unique possibilities to be employed as a nanoscale sensor for detection and imaging of wea…

cond-mat.mes-hall2013★ 31 cited

Manipulation of the nuclear spin ensemble in a quantum dot with chirped magnetic resonance pulses

Mathieu Munsch, Gunter Wüst, Andreas V. Kuhlmann +6

The nuclear spins in nanostructured semiconductors play a central role in quantum applications. The nuclear spins represent a useful resource for generating local magnetic fields b…

cond-mat.mes-hall2013★ 9 cited

Teleportation-induced entanglement of two nanomechanical oscillators coupled to a topological superconductor

Stefan Walter, Jan Carl Budich

A one-dimensional topological superconductor features a single fermionic zero mode that is delocalized over two Majorana bound states located at the ends of the system. We study a…

cond-mat.mes-hall2013★ 47 cited

Phonon-Mediated Decay of Singlet-Triplet Qubits in Double Quantum Dots

Viktoriia Kornich, Christoph Kloeffel, Daniel Loss

We study theoretically the phonon-induced relaxation () and decoherence times () of singlet-triplet qubits in lateral GaAs double quantum dots (DQDs). When the DQD is bia…

cs.DC2013★ 4 cited

A Chemistry-Inspired Framework for Achieving Consensus in Wireless Sensor Networks

Massimo Monti, Luca Sanguinetti, Christian Tschudin +1

The aim of this paper is to show how simple interaction mechanisms, inspired by chemical systems, can provide the basic tools to design and analyze a mathematical model for achievi…

cond-mat.mes-hall2013★ 16 cited

Anisotropic g factor in InAs self-assembled quantum dots

Robert Zielke, Franziska Maier, Daniel Loss

We investigate the wave functions, spectrum, and g-factor anisotropy of low-energy electrons confined to self-assembled, pyramidal InAs quantum dots (QDs) subject to external magne…

hep-ph2013★ 40 cited

GUT predictions for quark-lepton Yukawa coupling ratios with messenger masses from non-singlets

Stefan Antusch, Stephen F. King, Martin Spinrath

We propose new predictions from Grand Unified Theories (GUTs) (applicable to both supersymmetric (SUSY) and non-SUSY models) for the ratios of quark and lepton Yukawa couplings. Th…

nucl-ex2013★ 229 cited

Neutron skin of Pb from Coherent Pion Photoproduction

C. M. Tarbert, D. P. Watts, D. I. Glazier +57

Information on the size and shape of the neutron skin on Pb has been extracted from coherent pion photoproduction cross sections measured using the Crystal Ball together wi…