Quantum many-body theory

We focus on the development of theoretical methodology to study non-equilibrium quantum systems. These techniques involve diagrammatic perturbation theory and time-dependent density functional theory. We currently focus on the description of electron-phonon and electron-photon systems and in particular on time-resolved spectroscopies. A very recent focus is the development of quantum algorithms to simulate quantum many-body systems on quantum computers.
Time-resolved spectrospies

Table of contents

Research group type
Research group
Core fields of research
Basic natural phenomena and mathematical thinking
Research areas
Second quantum revolution
Nanoscience Center
Materials physics
Faculty
Faculty of Mathematics and Science
Department
Department of Physics

Research group description

We focus on the development of theoretical methodology to study non-equilibrium quantum systems, such as molecules and solids exposed to strong laser pulses and the description of time-resolved spectroscopies. The theoretical techniques involve diagrammatic perturbation theory and time-dependent density functional theory. A recent additional focus is to develop quantum algorithms to simulate strongly correlated quantum many-body systems on quantum computers.

Research topics

  • Nonequilibrium many-body theory for electrons and phonons/photons
  • Time-resolved spectroscopies
  • Non-equilibrium Green functions and time-dependent density-functional theory
  • Quantum computing and quantum lattice systems

Publications

Publication
2013

Interdisciplinary workshop on Progress in Nonequilibrium Green's Functions
Tuovinen, Riku
van Leeuwen, Robert
Perfetto, Enrico
Stefanucci, Gianluca
Publication
2013

Physical Review A
Giesbertz, Klaas
van Leeuwen, Robert
von Barth, U.
Publication
2012

Fundamentals of Time-Dependent Density Functional Theory
Ruggenthaler, Michael
van Leeuwen, Robert
Publication
2012

Physical Review B
Akbari, A.
Hashemi, M.J.
Rubio, A.
Nieminen, Roope
van Leeuwen, Robert
Publication
2012

Physical Review B
Khosravi, A.
Uimonen, Anna-Maija
Stan, Adrian
Stefanucci, G.
Kurth, S.
van Leeuwen, Robert
Gross, E.K.U.
Publication
2012

Physical Review A
Ruggenthaler, Michael
Giesbertz, Klaas
Penz, M.
van Leeuwen, Robert
Publication
2012

Physical Review B
Myöhänen, Petri
Tuovinen, Riku
Korhonen, Topi
Stefanucci, G.
van Leeuwen, Robert
Publication
2012

Fundamentals of Time-Dependent Density Functional Theory
van Leeuwen, Robert
Gross, E.K.U.
Publication
2012

Physical Review B
Putaja, Antti
Räsänen, Esa
van Leeuwen, Robert
Vilhena, J.G.
Marques, M.A.L.
Publication
2012

New Journal of Physics
Säkkinen, Niko
Manninen, Matti
van Leeuwen, Robert
Publication
2012

Physical Review B
van Leeuwen, Robert
Stefanucci, G.
Publication
2011

Physical Review B
Uimonen, Anna-Maija
Khosravi, E.
Stan, Adrian
Stefanucci, G.
Kurth, S.
van Leeuwen, Robert
Gross, E.K.U.

Teaching

Lectures notes on electrodynamics

Research group

Group leaders

Robert van Leeuwen

Professor

Members

Janne Nevalaita

Senior Researcher

Joona Marjamäki

Doctoral Researcher
Daniele Cuomo

Daniele Cuomo

Postdoctoral Researcher