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Magnetic monopoles in spin ice

- C. Castelnovo, R. Moessner, S. Sondhi
- Physics, Medicine
- Nature
- 30 October 2007

TLDR

Entanglement and topological entropy of the toric code at finite temperature

- C. Castelnovo, C. University, B. University
- Physics
- 27 April 2007

We calculate exactly the von Neumann and topological entropies of the toric code as a function of system size and temperature. We do so for systems with infinite energy scale separation between… Expand

Quantum topological phase transition at the microscopic level

- C. Castelnovo, C. University, B. University
- Physics
- 13 July 2007

We study a quantum phase transition between a phase which is topologically ordered and one which is not. We focus on a spin model, an extension of the toric code, for which we obtain the exact ground… Expand

Topological order and topological entropy in classical systems

- C. Castelnovo, C. University, B. University
- Physics
- 11 October 2006

We show that the concept of topological order, introduced to describe ordered quantum systems which cannot be classified by broken symmetries, also applies to classical systems. Starting from a… Expand

Steady-state superconductivity in electronic materials with repulsive interactions

- Oliver Hart, G. Goldstein, C. Chamon, C. Castelnovo
- Physics, Materials Science
- Physical Review B
- 29 October 2018

We study the effect of laser driving on a minimal model for a hexagonal two-dimensional material with broken inversion symmetry. Through the application of circularly polarised light and coupling to… Expand

Spin Ice, Fractionalization, and Topological Order

- C. Castelnovo, R. Moessner, S. Sondhi
- Physics
- 16 December 2011

The spin ice compounds Dy2Ti2O7 and Ho2Ti2O7 are highly unusual magnets that epitomize a set of concepts of great interest in modern condensed matter physics: Their low-energy physics exhibits an… Expand

Thermal quenches in spin ice.

- C. Castelnovo, R. Moessner, S. Sondhi
- Physics, Medicine
- Physical review letters
- 19 September 2009

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Vacancy defects and monopole dynamics in oxygen-deficient pyrochlores.

- G. Sala, M. Gutmann, +6 authors J. Goff
- Materials Science, Physics
- Nature materials
- 1 May 2014

TLDR

Topological order in a three-dimensional toric code at finite temperature

- C. Castelnovo, Claudio Chamon University of Oxford, B. University
- Physics
- 22 April 2008

We study topological order in a toric code in three spatial dimensions or a $3+1\text{D}$ ${\mathbb{Z}}_{2}$ gauge theory at finite temperature. We compute exactly the topological entropy of the… Expand

Neural network wave functions and the sign problem

- A. Szab'o, C. Castelnovo
- Computer Science, Physics
- ArXiv
- 11 February 2020

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