Showing 2018Show all

1,490 papers · 1 filter

hep-th2018★ 7 cited

An Index for Superconformal Quantum Mechanics

Nick Dorey, Andrew Singleton

We study quantum mechanical systems with superconformal symmetry. We classify unitary lowest-weight representations of this superconformal algebra and def…

q-bio.NC2018★ 32 cited

Fundamental bounds on learning performance in neural circuits

Dhruva V Raman, Timothy O'Leary

How does the size of a neural circuit influence its learning performance? Intuitively, we expect the learning capacity of a neural circuit to grow with the number of neurons and sy…

cs.PL2018★ 17 cited

Eff Directly in OCaml

Oleg Kiselyov, KC Sivaramakrishnan

The language Eff is an OCaml-like language serving as a prototype implementation of the theory of algebraic effects, intended for experimentation with algebraic effects on a large…

hep-lat2018★ 2 cited

Improving the Kinetic Couplings in Lattice Non-Relativistic QCD

Christine T. H. Davies, Judd Harrison, Ciaran Hughes +3

We improve the non-relativistic QCD (NRQCD) action by comparing the dispersion relation to that of the continuum through in perturbation theory. The one-loop mat…

astro-ph.SR2018★ 8 cited

Constraining the magnetic field on white dwarf surfaces; Zeeman effects and fine structure constant variation

J. Hu, J. K. Webb, T. R. Ayres +12

White dwarf atmospheres are subjected to gravitational potentials around times larger than occur on Earth. They provide a unique environment in which to search for any possi…

physics.geo-ph2018★ 34 cited

Tracking plumbing system dynamics at the Campi Flegrei caldera, Italy: High-resolution trace element mapping of the Astroni crystal cargo

Rebecca L. Astbury, Maurizio Petrelli, Teresa Ubide +4

The Campi Flegrei caldera (southern Italy) is one of the most hazardous volcanic systems on Earth, having produced >60 eruptions in the past 15 ka. The caldera remains active and i…

astro-ph.CO2018★ 14 cited

CMB lensing bi-spectrum: assessing analytical predictions against full-sky lensing simulations

Toshiya Namikawa, Benjamin Bose, François R. Bouchet +2

Cosmic microwave background (CMB) lensing is an integrated effect whose kernel is greater than half the peak value in the range . Measuring this effect offers a powerful too…

astro-ph.GA2018★ 61 cited

HST/WFC3 grism observations of clusters: The cluster vs. field stellar mass-size relation and evidence for size growth of quiescent galaxies from minor mergers

Jasleen Matharu, Adam Muzzin, Gabriel B. Brammer +13

Minor mergers are thought to be responsible for the size growth of quiescent field galaxies with decreasing redshift. We test this hypothesis using the cluster environment as a lab…

physics.soc-ph2018★ 136 cited

The Chaperone Effect in Scientific Publishing

Vedran Sekara, Pierre Deville, Sebastian Ahnert +3

Experience plays a critical role in crafting high impact scientific work. This is particularly evident in top multidisciplinary journals, where a scientist is unlikely to appear as…

cs.LO2018★ 1 cited

Revisiting Timed Logics with Automata Modalities

Hsi-Ming Ho

It is well known that (timed) -regular properties such as `p holds at every even position' and `p occurs at least three times within the next 10 time units' cannot be expressed…

math.DS2018★ 6 cited

Monotonicity on homogeneous spaces

Cyrus Mostajeran, Rodolphe Sepulchre

This paper presents a formulation of the notion of monotonicity on homogeneous spaces. We review the general theory of invariant cone fields on homogeneous spaces and provide a lis…

hep-ex2018★ 16 cited

Properties of at small opening angles in collisions with the ATLAS detector at TeV

ATLAS Collaboration

The fragmentation of high-energy gluons at small opening angles is largely unconstrained by present measurements. Gluon splitting to -quark pairs is a unique probe into the prop…

astro-ph.GA2018★ 13 cited

The Neutral Hydrogen Properties of Galaxies in Gas-rich Groups

Robert Džudžar, Virginia Kilborn, Gerhardt Meurer +23

We present an analysis of the integrated neutral hydrogen (HI) properties for 27 galaxies within nine low mass, gas-rich, late-type dominated groups which we denote "Choirs". We fi…

cond-mat.quant-gas2018★ 5 cited

Decay rates and energies of free magnons and bound states in dissipative XXZ chains

C. D. Parmee, N. R. Cooper

Chains of coupled two-level atoms behave as 1D quantum spin systems, exhibiting free magnons and magnon bound states. While these excitations are well studied for closed systems, l…

physics.chem-ph2018★ 41 cited

Anticipating acene-based chromophore spectra with molecular orbital arguments

Timothy J. H. Hele, Eric G. Fuemmeler, Samuel N. Sanders +4

Recent synthetic studies on the organic molecules tetracene and pentacene have found certain dimers and oligomers to exhibit an intense absorption in the visible region of the spec…

quant-ph2018★ 142 cited

Quantum Interface of an Electron and a Nuclear Ensemble

Dorian Gangloff, Gabriel Éthier-Majcher, Constantin Lang +7

Coherent excitation of an ensemble of quantum objects underpins quantum many-body phenomena, and offers the opportunity to realize a quantum memory to store information from a qubi…

astro-ph.EP2018★ 97 cited

A new class of Super-Earths formed from high-temperature condensates: HD219134 b, 55 Cnc e, WASP-47 e

Caroline Dorn, John H. D. Harrison, Amy Bonsor +1

We hypothesise that differences in the temperatures at which the rocky material condensed out of the nebula gas can lead to differences in the composition of key rocky species (e.g…

astro-ph.EP2018★ 52 cited

Spectral and orbital characterisation of the directly imaged giant planet HIP 65426 b

A. C. Cheetham, M. Samland, S. S. Brems +38

HIP 65426 b is a recently discovered exoplanet imaged during the course of the SPHERE-SHINE survey. Here we present new and observations of the planet from the NACO instr…

astro-ph.SR2018★ 3 cited

High-resolution spectroscopy of Boyajian's star during optical dimming events

M. J. Martínez González, C. González-Fernández, A. Asensio Ramos +13

Boyajian's star is an apparently normal main sequence F-type star with a very unusual light curve. The dipping activity of the star, discovered during the Kepler mission, presents…

astro-ph.CO2018★ 7 cited

Observational constraints on running vacuum model

Jin-Jun Zhang, Chung-Chi Lee, Chao-Qiang Geng

We investigate the power spectra of the CMB temperature and matter density in the running vacuum model (RVM) with the time-dependent cosmological constant of , whe…

astro-ph.SR2018★ 75 cited

Gaia 17bpi: An FU Ori Type Outburst

Lynne A. Hillenbrand, Carlos Contreras Peña, Sam Morrell +7

We report on the source Gaia 17bpi and identify it as a new, ongoing FU Ori type outburst, associated with a young stellar object. The optical lightcurve from Gaia exhibited a 3.5…

astro-ph.IM2018★ 9 cited

Why Chromatic Imaging Matters

Joel Sanchez-Bermudez, Florentin Millour, Fabien Baron +15

During the last two decades, the first generation of beam combiners at the Very Large Telescope Interferometer has proved the importance of optical interferometry for high-angular…

astro-ph.GA2018★ 65 cited

The Limitations of Optical Spectroscopic Diagnostics in Identifying AGNs in the Low Mass Regime

Jenna M. Cann, Shobita Satyapal, Nicholas P. Abel +4

Intermediate-mass black holes (IMBHs) with masses between are crucial to our understanding of black hole seed formation and are the prime targets for LISA, ye…

astro-ph.GA2018★ 48 cited

[CII] 158 Micron Emission from z~4 HI Absorption-Selected Galaxies

Marcel Neeleman, Nissim Kanekar, J. Xavier Prochaska +2

We report on a search for the [CII] 158 micron emission line from galaxies associated with four high-metallicity damped Ly-alpha absorbers (DLAs) at z ~ 4 using the Atacama Large M…