• Quantum phase transitions
• Novel phases of matter
• Real space renormalisation
• Entanglement in spin systems
• Transport
• Decoherence

• since October 2010 EPSRC PhD+ Fellow
• 2007-2010 PhD student under supervision of Prof. Sougato Bose
• 2006-2007 Diploma student at the Quantum Thermodynamics group @ UOS
• 2001-2006 Study of physics at Universities of Konstanz and Osnabrueck

"Entanglement between noncomplementary parts of many-body systems"
PhD thesis, UCL (2010), UCL e-theses. My thesis has also been published in the series "Springer Theses" >>

Journal papers:

• "Universality of the negativity in the Lipkin-Meshkov-Glick model", (HW, J. Vidal, S. Bose) Phys. Rev. A 81 (2010) 032311
• "Density dynamics from current auto-correlations at finite time- and length-scales", (R. Steinigeweg, HW, Jochen Gemmer)  EPL 88 (2009) 10004 arXiv:0906.2113
• "Scaling of entanglement between separated blocks in spin chains at criticality", Phys. Rev. A 80, 010304(R) ( HW, J. Molina-Vilaplana, S. Bose)
• "Extraction of pure entangled states from many body systems by distant local projections", Phys. Rev. A 79 062310 (J. Molina-Vilaplana, HW, V.E. Korepin, S. Bose)
• "Exploiting quench dynamics in spin chains for distant entanglement and quantum communication", Phys. Rev. A 79, 060302(R) (2009) (HW, S. Bose)
• "Transport in open spin chains: A Monte-Carlo wave-function approach", Phys. Rev. B 77, 104303 (2008) (M. Michel, O. Hess, HW, J. Gemmer)
• "Heat transport in quantum spin chains: Stochastic baths vs. quantum trajectories", Eur. Phys. J. Spec. Top. 151, 113 (2007) (C. Mejia-Monasterio, HW)
• "Modeling heat transport through completely positive maps", Phys. Rev. E 76, 031115 (2007) (HW, M.-J. Henrich, H.-P. Breuer, J. Gemmer, M. Michel)

Miscellaneous

Diploma thesis (University of Osnabrück) under supervision of Prof Jochen Gemmer.