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19922026
most citedPractical Bayesian Optimization of Machine Learning Algorithms

5.7k citations

Showing 2015Show all

56 papers · 1 filter

cond-mat.str-el2015★ 24 cited

Expansion of the tetragonal magnetic phase with pressure in the iron-arsenide superconductor Ba{1-x}KxFe2As2

E. Hassinger, G. Gredat, F. Valade +11

In the temperature-concentration phase diagram of most iron-based superconductors, antiferromagnetic order is gradually suppressed to zero at a critical point, and a dome of superc…

quant-ph2015★ 49 cited

Quantum Zeno effect in the strong measurement regime of circuit quantum electrodynamics

D. H. Slichter, C. Müller, R. Vijay +3

We observe the quantum Zeno effect -- where the act of measurement slows the rate of quantum state transitions -- in a superconducting qubit using linear circuit quantum electrodyn…

cond-mat.mes-hall2015★ 6 cited

Magnetometry of micro-magnets with electrostatically defined Hall bars

Dany Lachance-Quirion, Julien Camirand Lemyre, Laurent Bergeron +2

Micro-magnets are key components for quantum information processing with individual spins, enabling arbitrary rotations and addressability. In this work, characterization of sub-mi…

cond-mat.str-el2015★ 34 cited

Quantum cluster approach to the spinful Haldane-Hubbard model

Jingxiang Wu, Jean Paul Latyr Faye, David Sénéchal +1

We study the spinful fermionic Haldane-Hubbard model at half filling using a combination of quantum cluster methods: cluster perturbation theory (CPT), the variational cluster appr…

cond-mat.supr-con2015★ 38 cited

Critical Doping for the Onset of Fermi-Surface Reconstruction by Charge-Density-Wave Order in the Cuprate Superconductor LaSrCuO

S. Badoux, S. A. A. Afshar, B. Michon +11

The Seebeck coefficient of the cuprate superconductor LaSrCuO (LSCO) was measured in magnetic fields large enough to access the normal state at low temp…

cond-mat.mes-hall2015★ 6 cited

RD-NMR spectra of the crystal states of the two-dimensional electron gas in a quantizing magnetic field

R. Côté, Alexandre M. Simoneau

Transport experiments on the two-dimensional electron gas (2DEG) confined into a semiconductor quantum well and subjected to a quantizing magnetic field have uncovered a rich varie…

math.RT2015

Unistructurality of cluster algebras of type

Véronique Bazier-Matte

It is conjectured by Ibrahim Assem, Ralf Schiffler and Vasilisa Shramchenko in "Cluster Automorphisms and Compatibility of Cluster Variables" that every cluster algebra is unistruc…

cond-mat.supr-con2015★ 406 cited

Change of carrier density at the pseudogap critical point of a cuprate superconductor

S. Badoux, W. Tabis, F. Laliberté +10

The pseudogap is a central puzzle of cuprate superconductors. Its connection to the Mott insulator at low doping remains ambiguous and its relation to the charge order that rec…

quant-ph2015★ 114 cited

Contextuality and Wigner function negativity in qubit quantum computation

Robert Raussendorf, Dan E. Browne, Nicolas Delfosse +2

We describe a scheme of quantum computation with magic states on qubits for which contextuality is a necessary resource possessed by the magic states. More generally, we establish…

cond-mat.mes-hall2015★ 20 cited

Se nuclear magnetic resonance of topological insulator BiSe

Nataliya M. Georgieva, Damian Rybicki, Robin Guehne +5

Topological insulators (TIs) constitute a new class of materials with an energy gap in the bulk and peculiar metallic states on the surface. To date, most experiments have focused…

quant-ph2015★ 17 cited

Discrete photon statistics from continuous microwave measurements

Stéphane Virally, Jean Olivier Simoneau, Christian Lupien +1

Photocount statistics are an important tool for the characterization of electromagnetic fields, especially for fields with an irrelevant phase. In the microwave domain, continuous…

physics.atom-ph2015★ 13 cited

XUV lasing during strong-field assisted transient absorption in molecules

Timm Bredtmann, Szczepan Chelkowski, Andre. D. Bandrauk +1

Using ab-initio non-Born-Oppenheimer simulations, we demonstrate amplification of XUV radiation in a high-harmonic generation type process using the example of the hydrogen molecul…

cs.CV2015★ 79 cited

Within-Brain Classification for Brain Tumor Segmentation

Mohammad Havaei, Hugo Larochelle, Philippe Poulin +1

Purpose: In this paper, we investigate a framework for interactive brain tumor segmentation which, at its core, treats the problem of interactive brain tumor segmentation as a mach…

quant-ph2015★ 9 cited

Quantum Predictive Filtering

Arne L. Grimsmo, Susanne Still

How can relevant information be extracted from a quantum process? In many situations, only some part of the total information content produced by an information source is useful. C…

quant-ph2015★ 173 cited

Enhanced nonlinear interactions in quantum optomechanics via mechanical amplification

Marc-Antoine Lemonde, Nicolas Didier, Aashish A. Clerk

We present an approach for exponentially enhancing the single-photon coupling strength in an optomechanical system using only additional linear resources. It allows one to reach th…

quant-ph2015★ 43 cited

Reducing the overhead for quantum computation when noise is biased

Paul Webster, Stephen D. Bartlett, David Poulin

We analyse a model for fault-tolerant quantum computation with low overhead suitable for situations where the noise is biased. The basis for this scheme is a gadget for the fault-t…

quant-ph2015★ 5 cited

Spectral properties for a family of two-dimensional quantum antiferromagnets

Andrew S. Darmawan, Stephen D. Bartlett

We study the spectral properties of a family of quantum antiferromagnets on two-dimensional (2D) lattices. This family of models is obtained by a deformation of the well-studied 2D…

math.RA2015★ 7 cited

On Structure of cluster algebras of geometric type I: In view of sub-seeds and seed homomorphisms

Min Huang, Fang Li, Yichao Yang

Our motivation is to build a systematic method in order to investigate the structure of cluster algebras of geometric type. The method is given through the notion of mixing-type su…

cond-mat.str-el2015★ 6 cited

Electrical transport near quantum criticality in low dimensional organic superconductors

M. Shahbazi, C. Bourbonnais

We propose a theory of longitudinal resistivity in the normal phase of quasi-one-dimensional organic superconductors near the quantum critical point where antiferromagnetism border…

cond-mat.supr-con2015★ 35 cited

Correlation-enhanced odd-parity inter-orbital singlet pairing in the iron-pnictide superconductor LiFeAs

R. Nourafkan, G. Kotliar, A. -M. S. Tremblay

The rich variety of iron-based superconductors and their complex electronic structure lead to a wide range of possibilities for gap symmetry and pairing components. Here we solve i…

physics.comp-ph2015★ 21 cited

Galerkin method for unsplit 3-D Dirac equation using atomically/kinetically balanced B-spline basis

F. Fillion-Gourdeau, E. Lorin, A. D. Bandrauk

A Galerkin method is developed to solve the time-dependent Dirac equation in prolate spheroidal coordinates for an electron-molecular two-center system. The initial state is evalua…

cond-mat.mes-hall2015★ 4 cited

Electromagnetic absorption and Kerr effect in quantum Hall ferromagnetic states of bilayer graphene

R. Côté, Manuel Barrette, Élie Bouffard

In a quantizing magnetic field, the chiral two-dimensional electron gas in Landau level of bilayer graphene goes through a series of phase transitions at integer filling fact…

cond-mat.supr-con2015★ 32 cited

Maximum Entropy Analytic Continuation for Spectral Functions with Non-Positive Spectral Weight

A. Reymbaut, D. Bergeron, A. -M. S. Tremblay

Information about the pairing mechanism for superconductivity is contained in the spectral weight for the anomalous (Gorkov) Green function. In the most general case, this spectral…

cond-mat.mes-hall2015★ 90 cited

Robust micro-magnet design for fast electrical manipulations of single spins in quantum dots

Jun Yoneda, Tomohiro Otsuka, Tatsuki Takakura +9

Tailoring spin coupling to electric fields is central to spintronics and spin-based quantum information processing. We present an optimal micromagnet design that produces appropria…