Sebastian Ahnert's Homepage

SEBASTIAN AHNERT

Currently, I am a Leverhulme Early Career Research Fellow in the Theory of Condensed Matter (TCM) group of the Cavendish Laboratory at the University of Cambridge.

I am also affiliated with the Bioinformatics group of the Institut Curie in Paris.

RESEARCH

Algorithmic Information Theory and Statistical Mechanics

Analysis of genetic data and construction of genetic networks, by using algorithmic information theory
Classifying the dynamics of boolean network motifs
Analysis of weighted networks

Quantum Information Theory

Theoretical implementations of generalized and weak quantum measurements

Condensed Matter Theory

Using Gaussian Processes to develop a universal method for constructing empirical potentials

PUBLICATIONS

S. E. Ahnert, D. Garlaschelli, T. M. A. Fink, G. Caldarelli
An ensemble approach to the analysis of weighted networks
Phys. Rev. E 76, 016101 (2007)
and cond-mat/060449.

S. E. Ahnert, K. Willbrand, F. C. S. Brown, T. M. A. Fink
Unbiased pattern detection in microarray data series
Bioinformatics 22, 1471 (2006)
(abstract | PDF)

S. E. Ahnert, M. C. Payne
All possible bipartite positive-operator-value measurements of two-photon polarization states
Phys. Rev. A 73, 022333 (2006)
and quant-ph/0512227

S. E. Ahnert, M. C. Payne
General implementation of all possible positive-operator-value measures of single photon polarization states
Phys. Rev. A 71, 012330 (2005)
and quant-ph/0408011

S. E. Ahnert, M. C. Payne
Linear optics implementation of weak values in Hardy's paradox
Phys. Rev. A 70, 042102 (2004)
and quant-ph/0408153

S. E. Ahnert, M. C. Payne
Weak measurement of the arrival times of single photons and pairs of entangled photons
Phys. Rev. A 69, 042103 (2004)
and quant-ph/0405156

S. E. Ahnert, M. C. Payne
Nonorthogonal projective positive-operator-value measurement of photon polarization states with unit probability of success
Phys. Rev. A 69, 012312 (2004)

TALKS AND LECTURES

During Lent Term 2006 I gave four graduate lectures at the Cavendish Laboratory on various topics in quantum information theory. The lecture notes can be found here.

In Lent Term 2008 I gave another four lectures, this time on complex networks. The slides from this lecture can be found here.

Two talks I have given to the Electronic Structure Discussion Group (ESDG) on weak measurement and on molecular dynamics using Gaussian processes can be found here and here, respectively.