Department of physics

Technical University of Denmark

Building 307 - Room 210

DK-2800 Kongens Lyngby

My main area of research is electronic structure theory of solids and nanostructured materials. In particular

- Spin-orbit phenomena in the solid state. Topological insulators and Berry phase physics
- Development of new functionals for ground state energy calculations
- Excitonic effects in low-dimensional materials
- Toy models for strongly correlated systems
- Non-adiabatic dynamics

- 2015 - 2016: Statistical Physics.
*Graduate course* - 2017 --- : Quantum Mechanics.
*Undergraduate course*

- September 2015 --- : Assistant Professor at CAMD - DTU
- January 2015 - August 2015 : Post Doc at CAMD - DTU
- January 2014 - December 2014 : Post Doc at CFM - Universidad del Pais Vasco
- September 2010 - December 2013 : Post Doc at CAMD - DTU
- August 2007 - August 2010: Ph.d Student at CINF - DTU
- April 2007 - Juli 2007: Research assistent at CINF - DTU
- August 2006: Cand.Scient Physics - University of Copenhagen

- T. Olsen, S. Latini, F. Rasmussen and K. S. Thygesen

*Simple Screened Hydrogen Model of Excitons in Two-Dimensional Materials*

Phys. Rev. Lett.**116**, 056401 (2016)

- M. Pandey, F. Rasmussen, K. Kuhar, T. Olsen, K. W. Jacobsen and K. S. Thygesen

*Defect-Tolerant Monolayer Transition Metal Dichalcogenides*

Nano Letters**16**, 2234 (2016)

- T. S. Jauho, T. Olsen, T. Bligaard and K. S. Thygesen

*Improved description of metal oxide stability: Beyond the random phase approximation with renormalized kernels*

Phys. Rev. B**92**, 115140 (2015)

- S. Latini, T. Olsen and K. S. Thygesen

*Excitons in van der Waals heterostructures: The important role of dielectric screening*

Phys. Rev. B**92**, 245123 (2015)

- T. Olsen and I. Souza

*Valley Hall effect in disordered monolayer MoS2 from first principles*

Phys. Rev. B**92**, 125146 (2015)

- T. Olsen and K. S. Thygesen

*Accurate Ground-State Energies of Solids and Molecules from Time-Dependent Density-Functional Theory*

Phys. Rev. Lett.**112**, 203001 (2014)

- T. Olsen and K. S. Thygesen

*Static correlation beyond the random phase approximation: Dissociating H2 with the Bethe-Salpeter equation and time-dependent GW*

J. Chem. Phys.**140**, 164116 (2014)

- Falco Hüser, T. Olsen and K. S. Thygesen

*How dielectric screening in two-dimensional crystals affects the convergence of excited-state calculations: Monolayer MoS2*

Phys. Rev. B**88**, 245309 (2013)

- T. Olsen and K. S. Thygesen

*Beyond the random phase approximation: Improved description of short-range correlation by a renormalized adiabatic local density approximation*

Phys. Rev. B**88**, 115131 (2013)

- Falco Hüser, T. Olsen and K. S. Thygesen

*Quasiparticle GW calculations for solids, molecules, and two-dimensional materials*

Phys. Rev. B**87**, 235132 (2013)

- T. Olsen and K. S. Thygesen

*From graphene on metals to cohesive energies of solids and molecules with the random phase approximation*

Phys. Rev. B**87**, 075111 (2013)

- T. Olsen and K. S. Thygesen

*Extending the random-phase approximation for electronic correlation energies: The renormalized adiabatic local density approximation*

Phys. Rev. B**86**, 081103(R) (2012)

- I. E. Castelli, T. Olsen, S. Datta, D. D. Landis, S. Dahl, K. S. Thygesen and K. W. Jacobsen

*Computational screening of perovskite metal oxides for optimal solar light capture*

Energy Environ. Sci.**5**, 5814 (2012)

- T. Olsen, J. Yan, J. J. Mortensen and K. S. Thygesen

*Dispersive and Covalent Interactions between Graphene and Metal Surfaces from the Random Phase Approximation*

Phys. Rev. Lett.**107**, 156401 (2011)

- B. Siemer, T. Olsen, T. Hoger, M. Rutkowski, C. Thewes, S. Düsterer, J. Schiøtz and H. Zacharias

*Desorption of H atoms from graphite (0001) using XUV free electron laser pulses*

Chem. Phys. Lett.**500**, 291 (2010)

- T. Olsen and J. Schiøtz

*Memory effects in nonadiabatic molecular dynamics at metal surfaces*

J. Chem. Phys.**133**, 134109 (2010)

- T. Olsen and J. Schiøtz

*Quantum corrected Langevin dynamics for adsorbates on metal surfaces interacting with hot electrons*

J. Chem. Phys.**133**, 034115 (2010)

- R. Frigge, T. Hoger, B. Siemer, H. Witte, M. Silies, H. Zacharias, T. Olsen and J. Schiøtz

*Site Specificity in Femtosecond Laser Desorption of Neutral H Atoms from Graphite(0001)*

Phys. Rev. Lett.**104**, 256102 (2010)

- J. Enkovaara et al.

*Electronic structure calculations with GPAW: a real-space implementation of the projector augmented-wave method*

J. Phys.: Condens. Matter**22**, 253202 (2010)

- T. Olsen and J. Schiøtz

*Vibrationally mediated control of single-electron transmission in weakly coupled molecule-metal junctions*

Phys. Rev. B**81**, 115443 (2010)

- T. Olsen and J. Schiøtz

*Origin of Power Laws for Reactions at Metal Surfaces Mediated by Hot Electrons*

Phys. Rev. Lett**103**, 238301 (2009)

- J. S. Hummelshøj et al.

*Density functional theory based screening of ternary alkali-transition metal borohydrides: A computational material design project*

J. Chem. Phys.**131**, 014101 (2009)

- T. Olsen

*Inelastic scattering in a local polaron model with quadratic coupling to bosons*

Phys. Rev. B**79**, 235414 (2009)

- J. Gavnholt, A. Rubio, T. Olsen, K. S. Thygesen and J. Schiøtz

*Hot-electron-assisted femtochemistry at surfaces: A time-dependent density functional theory approach*

Phys. Rev. B**79**, 195405 (2009)

- T. Olsen, J. Gavnholt and J. Schiøtz

*Hot-electron-mediated desorption rates calculated from excited-state potential energy surfaces*

Phys. Rev. B**79**, 035403 (2009)

- J. Gavnholt, T. Olsen, M. Engelund and J. Schiøtz

*Delta self-consistent field method to obtain potential energy surfaces of excited molecules on surfaces*

Phys. Rev. B**78**, 075441 (2008)

Ph.D. thesis on theoretical models for non-adiabatic dynamics at metal surfaces

Master thesis on string theory and the AdS/CFT-correspondence.

A popular Danish review of subject was published in Gamma 145 and can be found here.

Bachelor project on double resonance spectroscopy and the hyperfine spectrum of cesium.