Showing 2020Show all

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quant-ph2020★ 14 cited

Two-boson quantum interference in time

Nicolas J. Cerf, Michael G. Jabbour

The celebrated Hong-Ou-Mandel effect is the paradigm of two-particle quantum interference. It has its roots in the symmetry of identical quantum particles, as dictated by the Pauli…

astro-ph.CO2020★ 9 cited

Non-perturbative halo clustering from cosmological density peaks

Tobias Baldauf, Sandrine Codis, Vincent Desjacques +1

Associating the formation sites of haloes with the maxima of the smoothed linear density field, we present non-perturbative predictions for the Lagrangian and evolved halo correlat…

cs.LO2020★ 25 cited

Certified Quantum Computation in Isabelle/HOL

Anthony Bordg, Hanna Lachnitt, Yijun He

In this article we present an ongoing effort to formalise quantum algorithms and results in quantum information theory using the proof assistant Isabelle/HOL. Formal methods being…

cond-mat.mes-hall2020★ 67 cited

Large-scale mapping of moiré superlattices by Raman imaging of interlayer breathing mode and moiré phonons

Kai-Qiang Lin, Johannes Holler, Jonas M. Bauer +6

Moiré superlattices can induce correlated-electronic phases in twisted van-der-Waals materials. Strongly correlated quantum phenomena emerge, such as superconductivity and the Mott…

math.PR2020

Answer to an open question concerning the -strategy for best choice under no information

F. Thomas Bruss, L. C. G. Rogers

This paper answers a long-standing open question concerning the -strategy for the problem of best choice. candidates for a job arrive at times independently uniformly dist…

astro-ph.GA2020★ 84 cited

Dust polarized emission observations of NGC 6334; BISTRO reveals the details of the complex but organized magnetic field structure of the high-mass star-forming hub-filament network

D. Arzoumanian, R. Furuya, T. Hasegawa +145

[Abridged] Filaments and hubs have received special attention recently thanks to studies showing their role in star formation. While the column density and velocity structures of b…

quant-ph2020★ 8 cited

The Complexity of Translationally Invariant Problems beyond Ground State Energies

James D. Watson, Johannes Bausch, Sevag Gharibian

It is known that three fundamental questions regarding local Hamiltonians -- approximating the ground state energy (the Local Hamiltonian problem), simulating local measurements on…

cond-mat.supr-con2020★ 10 cited

Resistivity, Hall effect, and anisotropic superconducting coherence lengths of HgBaCaCuO thin films with different morphology

H. Richter, W. Lang, M. Peruzzi +3

Thin films of the high-temperature superconductor HgBaCaCuO have been prepared on SrTiO substrates by pulsed-laser deposition of precursor films and subsequent…

hep-th2020★ 1 cited

Double Field Theory and Pseudo-Supersymmetry

Falk Hassler, C. N. Pope, Hao-Yu Zhang

Supersymmetric bosonic backgrounds governed by first-order BPS equations, can be realised in a much broader setting by relaxing the requirement of closure of the superalgebra beyon…

cond-mat.quant-gas2020★ 44 cited

Charged polarons and molecules in a Bose-Einstein Condensate

Esben Rohan Christensen, Arturo Camacho-Guardian, Georg M. Bruun

We investigate the properties a mobile ion immersed in a Bose-Einstein condensate (BEC) using different theoretical approaches. A coherent state variational ansatz predicts that th…

cs.LG2020★ 9 cited

Barking up the right tree: an approach to search over molecule synthesis DAGs

John Bradshaw, Brooks Paige, Matt J. Kusner +2

When designing new molecules with particular properties, it is not only important what to make but crucially how to make it. These instructions form a synthesis directed acyclic gr…

cond-mat.mes-hall2020★ 62 cited

Exciton-phonon coupling strength in single-layer MoSe2 at room temperature

Donghai Li, Chiara Trovatello, Stefano Dal Conte +6

Single-layer transition metal dichalcogenides are at the center of an ever increasing research effort both in terms of fundamental physics and applications. Exciton-phonon coupling…

cs.LG2020★ 5 cited

Sub-Linear Memory: How to Make Performers SLiM

Valerii Likhosherstov, Krzysztof Choromanski, Jared Davis +2

The Transformer architecture has revolutionized deep learning on sequential data, becoming ubiquitous in state-of-the-art solutions for a wide variety of applications. Yet vanilla…

cond-mat.str-el2020★ 44 cited

Electronic correlations and magnetic interactions in infinite-layer NdNiO

Vamshi M. Katukuri, Nikolay A. Bogdanov, Oskar Weser +2

The large antiferromagnetic exchange coupling in the parent high- cuprate superconductors is believed to play a crucial role in pairing the superconducting carriers. The…

cond-mat.soft2020★ 14 cited

Bayesian unsupervised learning reveals hidden structure in concentrated electrolytes

Penelope Jones, Fabian Coupette, Andreas Härtel +1

Electrolytes play an important role in a plethora of applications ranging from energy storage to biomaterials. Notwithstanding this, the structure of concentrated electrolytes rema…

cond-mat.supr-con2020★ 10 cited

Field-dependent specific heat of the canonical underdoped cuprate superconductor YBaCuO

Jeffery L. Tallon, John W. Loram

The cuprate superconductor YBaCuO, in comparison with most other cuprates, has a stable stoichiometry, is largely free of defects and may be regarded as the canonical u…

gr-qc2020★ 15 cited

Interior Quasinormal Modes and Strong Cosmic Censorship

Filipe S. Miguel

Recent work has argued that the strong cosmic censorship (SCC) conjecture is violated by near-extremal Reissner-Nordström de Sitter (RNdS) black holes but respected by Kerr-de Sitt…

astro-ph.HE2020★ 48 cited

Accretion disc cooling and narrow absorption lines in the tidal disruption event AT 2019dsg

G. Cannizzaro, T. Wevers, P. G. Jonker +23

We present the results of a large multi-wavelength follow-up campaign of the Tidal Disruption Event (TDE) \dsg, focusing on low to high resolution optical spectroscopy, X-ray, and…

astro-ph.GA2020★ 7 cited

A Redshift for the First Einstein Ring, MG 1131+0456

Daniel Stern, Dominic Walton

MG 1131+0456 is a radio-selected gravitational lens, and is the first known Einstein ring. Discovered in 1988, the system consists of a bright radio source imaged into a ring and t…

cond-mat.mes-hall2020★ 15 cited

Topological valley currents via ballistic edge modes in graphene superlattices near the primary Dirac point

Yang Li, Mario Amado, Timo Hyart +2

Graphene on hexagonal boron nitride (hBN) can exhibit a topological phase via mutual crystallographic alignment. Recent measurements of nonlocal resistance () near the seco…

astro-ph.SR2020★ 45 cited

TESS observations of Cepheid stars: first light results

E. Plachy, A. Pál, A. Bódi +33

We present the first analysis of Cepheid stars observed by the TESS space mission in Sectors 1 to 5. Our sample consists of 25 pulsators: ten fundamental mode, three overtone and t…

cs.LG2020★ 14 cited

Are we Forgetting about Compositional Optimisers in Bayesian Optimisation?

Antoine Grosnit, Alexander I. Cowen-Rivers, Rasul Tutunov +3

Bayesian optimisation presents a sample-efficient methodology for global optimisation. Within this framework, a crucial performance-determining subroutine is the maximisation of th…

astro-ph.SR2020★ 40 cited

Proplyds in the Flame Nebula NGC 2024

Thomas J. Haworth, Jinyoung S. Kim, Andrew J. Winter +5

A recent survey of the inner pc of the NGC 2024 star forming region revealed two distinct millimetre continuum disc populations that appear to be spatially segregat…

astro-ph.SR2020★ 20 cited

A comparison between X-shooter spectra and PHOENIX models across the HR-diagram

A. Lançon, A. Gonneau, K. Verro +14

The path towards robust near-infrared extensions of stellar population models involves the confrontation between empirical and synthetic stellar spectral libraries across the wavel…