Dr Helvi Witek
Career
- 2012-present: Research associate, DAMTP, University of Cambridge
- 2008-2012: PhD, CENTRA/ Instituto Superior Tecnico Lisbon/ Portugal, supervisor: Prof. Vitor Cardoso
Research
My current research interests are:
Black hole dynamics in generic spacetimes, including higher dimensional BHs and asymptotically anti-de Sitter spacetimes, stability properties of BHs, source modelling for gravitational wave astronomy, numerical relativity
Selected Publications
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M.Zilhao, V.Cardoso, L.Gualtieri, C.Herdeiro, U.Sperhake and H.Witek, "Dynamics of black holes in de Sitter spacetimes", Phys. Rev. D85, 104039 (2012)
- M.Zilhao, M.Ansorg, V.Cardoso, L.Gualtieri, C.Herdeiro, U.Sperhake and H.Witek, "Higher-dimensional puncture initial data", Phys. Rev. D84, 084039 (2011)
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U.Sperhake, V.Cardoso, C.D.Ott, E.Schnetter and H.Witek, "Extreme black hole simulations: collisions of unequal mass black holes and the point particle limit", Phys. Rev. D84, 084038 (2011)
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H.Witek, D.Hilditch and U.Sperhake, "Stability of the puncture method with a generalized BSSN formulation", Phys. Rev. D83, 104041 (2011)
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H.Witek, V.Cardoso, L.Gualtieri, C.Herdeiro, U.Sperhake and M.Zilhao, "Head-on collisions of unequal mass black holes in D=5 dimensions", Phys. Rev. D83, 044017 (2011)
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H.Witek, M.Zilhao, L.Gualtieri, V.Cardoso, C.Herdeiro, A.Nerozzi and U.Sperhake,
"Numerical relativity for D dimensional space-times: head-on collisions of black holes and gravitational wave extraction", Phys. Rev. D82, 104014 (2010) -
H.Witek, V.Cardoso, C.Herdeiro, A.Nerozzi, U.Sperhake and M.Zilhao, "Black holes in a box: towards the numerical evolution of black holes in AdS", Phys. Rev. D82, 104037 (2010)
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M.Zilhao, H.Witek, U.Sperhake, V.Cardoso, L.Gualtieri, C.Herdeiro and A.Nerozzi, "Numerical relativity for D dimensional axially symmetric space-times: formalism and code tests", Phys. Rev. D81, 084052 (2010)