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Jun 19, 2012
Statistical Mechanics
Disordered Systems and Neural Networks

Next nearest neighbour Ising models on random graphs

This paper develops results for the next nearest neighbour Ising model on random graphs. Besides being an essential ingredient in classic models for …
Dec 20, 2012
Superconductivity

Cool for Cats

The iconic Schr\"odinger's cat state describes a system that may be in a superposition of two macroscopically distinct states, for example two clearl…
May 11, 2011

Generating topological order from a 2D cluster state using a duality …

In this paper we prove, extend and review possible mappings between the two-dimensional Cluster state, Wen's model, the two-dimensional Ising chain a…
Aug 13, 2012

Quantum lost property: a possible operational meaning for the Hilbe…

Minimum error state discrimination between two mixed states \rho and \sigma can be aided by the receipt of "classical side information" specifying wh…
Jan 08, 2016
Soft Condensed Matter

Disk-shaped bicelles in block copolymer/homopolymer blends

Mixtures of micelle-forming and lamella-forming amphiphiles in solution can form disk-shaped bilayers, sometimes referred to as bicelles. Using self-…
Oct 16, 2013
Statistical Mechanics
Soft Condensed Matter

Numerical comparison of a constrained path ensemble and a driven qu…

We investigate the correspondence between a non-equilibrium ensemble defined via the distribution of phase-space paths of a Hamiltonian system, and a…
Apr 27, 2007
Mathematical Physics

Probability Density of the Multipole Vectors for a Gaussian Cosmic …

We review Maxwell's multipole vectors, and elucidate some of their mathematical properties, with emphasis on the application of this tool to the cosm…
Jan 31, 2012

Distinct Quantum States Can Be Compatible with a Single State of Real…

Perhaps the quantum state represents information about reality, and not reality directly. Wave function collapse is then possibly no more mysterious …
May 27, 2019

Entropic Uncertainty Relations via Direct-Sum Majorization Relation f…

We derive an entropic uncertainty relation for generalized positive-operator-valued measure (POVM) measurements via a direct-sum majorization relatio…
Feb 07, 2013
Disordered Systems and Neural Networks
Mathematical Physics

Correcting beliefs in the mean-field and Bethe approximations using …

Approximating marginals of a graphical model is one of the fundamental problems in the theory of networks. In a recent paper a method was shown to co…
Jun 15, 2018
Artificial Intelligence
Computation and Language
Physics and Society

Stylized innovation: interrogating incrementally available randomised…

Inspired by recent work of Fink, Reeves, Palma and Farr (2017) on innovation in language, gastronomy, and technology, I study how new symbol discover…
May 07, 2019
Strongly Correlated Electrons

Spin-isospin Kondo effects for $Σ_{c}$ and $Σ_{c}^{\ast}$ baryons a…

We study the Kondo effect for a $\Sigma_{c}$ ($\Sigma_{c}^{\ast}$) baryon in nuclear matter. In terms of the spin and isospin ($\mathrm{SU}(2)_{\math…
Aug 29, 2008
Networking and Internet Architecture

Adaptive Dynamic Congestion Avoidance with Master Equation

This paper proposes an adaptive variant of Random Early Detection (RED) gateway queue management for packet-switched networks via a discrete state an…
Feb 06, 2017
Computational Physics

On Calculating the Dynamics of Very Large Quantum Systems

Due to the exponential growth of the state space of coupled quantum systems it is not possible, in general, to numerically store the state of a very …
Jul 03, 2014
Materials Science

Manipulating the orientation of an organic adsorbate on silicon: a …

We investigate the chemical and structural configuration of acetophenone on Si(001) using synchrotron radiation core-level spectroscopy techniques an…
Oct 21, 2019
Machine Learning
Statistical Mechanics
Methodology

Generalised learning of time-series: Ornstein-Uhlenbeck processes

In machine learning, statistics, econometrics and statistical physics cross-validation (CV) is used as a standard approach in quantifying the general…
Sep 27, 2018

Quantum State Spectroscopy of Atom-Cavity Systems

In this work we explore the nature of quantum correlations between two-level atoms (or qubits) and a single mode of a quantum field in phase space. S…
Oct 23, 2015
Classical Physic

Generalized Transformation Design: metrics, speeds, and diffusion

We show that a unified and maximally generalized approach to spatial transformation design is possible, one that encompasses all second order waves, …
Aug 18, 2011

Halo Shapes From Weak Lensing: The Impact of Galaxy--Halo Misalignment

We analyse the impact of galaxy--halo misalignment on the ability of weak lensing studies to constrain the shape of dark matter haloes, using a combi…
Oct 15, 2013
Pricing of Securities
General Finance

On pricing kernels, information and risk

We discuss the finding that cross-sectional characteristic based models have yielded portfolios with higher excess monthly returns but lower risk tha…
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