output
19922026
Showing 2017Show all

192 papers · 1 filter

hep-lat2017★ 4 cited

Spectroscopy of Charmed and Bottom Hadrons using Lattice QCD

Sourav Mondal, M. Padmanath, Nilmani Mathur

We present preliminary results on the light, charmed and bottom baryon spectra using overlap valence quarks on the background of 2+1+1 flavours HISQ gauge configurations of the MIL…

cond-mat.mes-hall2017★ 19 cited

Giant terahertz photoconductance of tunneling point contacts

M. Otteneder, Z. D. Kvon, O. A. Tkachenko +5

We report on the observation of the giant photoconductance of a quantum point contact (QPC) in tunneling regime excited by terahertz radiation. Studied QPCs are formed in a GaAs/Al…

math.AG2017★ 1 cited

Weak completions, bornologies and rigid cohomology

Guillermo Cortiñas, Joachim Cuntz, Ralf Meyer +1

Let be a complete discrete valuation ring with residue field of positive characteristic and with fraction field of characteristic 0. We clarify the analysis behind the…

hep-lat2017★ 44 cited

Complex Langevin Simulation of a Random Matrix Model at Nonzero Chemical Potential

J. Bloch, J. Glesaaen, J. J. M. Verbaarschot +1

In this paper we test the complex Langevin algorithm for numerical simulations of a random matrix model of QCD with a first order phase transition to a phase of finite baryon densi…

math.KT2017★ 1 cited

Coarse homology theories and finite decomposition complexity

Ulrich Bunke, Alexander Engel, Daniel Kasprowski +1

Using the language of coarse homology theories, we provide an axiomatic account of vanishing results for the fibres of forget-control maps associated to spaces with equivariant fin…

physics.optics2017★ 51 cited

Phase-locked multi-terahertz electric fields exceeding 13 MV/cm at 190 kHz repetition rate

Matthias Knorr, Jürgen Raab, Maximilian Tauer +6

We demonstrate a compact source of energetic and phase-locked multi-terahertz pulses at a repetition rate of 190 kHz. Difference frequency mixing of the fundamental output of an Yb…

hep-lat2017★ 2 cited

Topological Susceptibility under Gradient Flow

Héctor Mejía-Díaz, Wolfgang Bietenholz, Krzysztof Cichy +4

We study the impact of the Gradient Flow on the topology in various models of lattice field theory. The topological susceptibility is measured directly, and by the slab…

hep-lat2017★ 36 cited

CLS 2+1 flavor simulations at physical light- and strange-quark masses

Daniel Mohler, Stefan Schaefer, Jakob Simeth

We report recent efforts by CLS to generate an ensemble with physical light- and strange-quark masses in a lattice volume of 192x96^3 at corresponding to a lattice spacing…

hep-lat2017★ 13 cited

Low energy properties of SU(2) gauge theory with N_f = 3/2 flavours of adjoint fermions

Georg Bergner, Pietro Giudice, Istvan Montvay +3

In this work we present the results of a numerical investigation of SU(2) gauge theory with N_f = 3/2 flavours of fermions, corresponding to 3 Majorana fermions, which transform in…

hep-ph2017★ 12 cited

Predicting and Discovering True Muonium

Henry Lamm, Yao Ji

The recent observation of discrepancies in the muonic sector motivates searches for the yet undiscovered atom true muonium . To leverage potential experimental signals, p…

hep-lat2017★ 1 cited

The Chiral Separation Effect in quenched finite-density QCD

M. Puhr, P. V. Buividovich

We present results of a study of the Chiral Separation Effect (CSE) in quenched finite-density QCD. Using a recently developed numerical method we calculate the conserved axial cur…

hep-ph2017★ 16 cited

Kaon Distribution Amplitude from Lattice QCD and the Flavor SU(3) Symmetry

Jiunn-Wei Chen, Luchang Jin, Huey-Wen Lin +6

We present the first lattice-QCD calculation of the kaon distribution amplitude using the large-momentum effective theory (LaMET) approach. The momentum-smearing technique has been…

math.AP2017

Minimal elastic networks

Anna Dall'Acqua, Matteo Novaga, Alessandra Pluda

We consider planar networks of three curves that meet at two junctions with prescribed equal angles, minimizing a combination of the elastic energy and the length functional. We pr…

cond-mat.mes-hall2017★ 27 cited

Shaping electron wave functions in a carbon nanotube with a parallel magnetic field

M. Marganska, D. R. Schmid, A. Dirnaichner +4

A magnetic field, through its vector potential, usually causes measurable changes in the electron wave function only in the direction transverse to the field. Here we demonstrate e…

hep-lat2017★ 1 cited

Heavy light tetraquarks from Lattice QCD

Parikshit Junnarkar, M Padmanath, Nilmani Mathur

We present preliminary results from a lattice calculation of tetraquark states in the charm and bottom sector of the type , , …

cond-mat.mes-hall2017★ 32 cited

Resonant scattering due to adatoms in graphene: top, bridge, and hollow position

Susanne Irmer, Denis Kochan, Jeongsu Lee +1

We present a theoretical study of resonance characteristics in graphene from adatoms with or character binding in top, bridge, and hollow positions. The adatoms are descr…

cond-mat.mes-hall2017★ 110 cited

Coherent excitation of heterosymmetric spin waves with ultrashort wavelengths

G. Dieterle, J. Förster, H. Stoll +16

In the emerging field of magnonics, spin waves are foreseen as signal carriers for future spintronic information processing and communication devices, owing to both the very low po…

physics.optics2017★ 46 cited

Infrared/Terahertz Spectra of the Photogalvanic Effect in (Bi,Sb)Te based Three Dimensional Topological Insulators

H. Plank, J. Pernul, S. Gebert +9

We report on the systematic study of infrared/terahertz spectra of photocurrents in (Bi,Sb)Te based three dimensional topological insulators. We demonstrate that in a wide range of…

hep-lat2017★ 2 cited

Landau levels in QCD in an external magnetic field

Falk Bruckmann, Gergely Endrodi, Matteo Giordano +4

We will discuss the issue of Landau levels of quarks in lattice QCD in an external magnetic field. We will show that in the two-dimensional case the lowest Landau level can be iden…

hep-lat2017★ 3 cited

Leptonic decay constants for D-mesons from 3-flavour CLS ensembles

Sara Collins, Kevin Eckert, Jochen Heitger +2

We report on the status of an ongoing effort by the RQCD and ALPHA Collaborations, aimed at determining leptonic decay constants of charmed mesons. Our analysis is based on large-v…

hep-lat2017★ 3 cited

scattering in the Roper channel

M. Padmanath, C. B. Lang, Luka Leskovec +1

We present results from our recent lattice QCD study of scattering in the positive-parity nucleon channel, where the puzzling Roper resonance resides in experiment…

hep-th2017★ 11 cited

Real-time dynamics of matrix quantum mechanics beyond the classical approximation

Pavel Buividovich, Masanori Hanada, Andreas Schäfer

We describe a numerical method which allows us to go beyond the classical approximation for the real-time dynamics of many-body systems by approximating the many-body Wigner functi…

hep-lat2017★ 3 cited

Ward identities in supersymmetric SU(3) Yang-Mills theory on the lattice

Sajid Ali, Georg Bergner, Henning Gerber +5

The introduction of a space-time lattice as a regulator of field theories breaks symmetries associated with continuous space-time, i.e.\ Poincar{é} invariance and supersymmetry. A…

cond-mat.mes-hall2017★ 5 cited

High-frequency rectification in graphene lateral p-n junctions

Yu. B. Vasilyev, G. Yu. Vasileva, S. Novikov +3

We observe a dc electric current in response to terahertz radiation in lateral inter-digitated double-comb graphene p-n junctions. The junctions were fabricated by selective ultrav…