People


Marco Deweirdt

Marco Deweirdt

Phd Student
marco.deweirdt@ugent.be

office: 120 005

Tel: +32 – (0)9 – 264 45 19

Research interests: 

Daan Maertens

Daan Maertens

PhD Student
daan.maertens@ugent.be

office: 120 032

Tel: +32 – (0)9 – 264 45 19

Research interests: 

My research focuses on the study of interacting quantum fields on curved spacetime backgrounds beyond the perturbative level, using variational numerical methods based on tensor network states. In the tensor network formalism the many-body wavefunction is encoded in terms of entanglement across virtual bonds, allowing us to directly study the entanglement spectrum. For one dimensional systems, the matrix product states (MPS) ansatz provides an efficient parametrization for the low energy states in the many-body Hilbert space.

 

In my PhD I would like to extend these techniques to (1+1)-dimensional toy models on black hole and cosmological spacetimes. This is mostly unexplored territory and beyond reach of alternative techniques such as Monte Carlo sampling. This approach could lead to ab-initio non-perturbative simulations of intriguing phenomena like the production of Hawking radiation and cosmic density perturbations from the vacuum.

Lander Burgelman

Lander Burgelman

Phd Student
lander.burgelman@ugent.be

office: 120 005

Tel: +32 – (0)9 – 264 45 19

Research interests: 

Lukas Devos

Lukas Devos

Phd Student
lukas.devos@ugent.be

office: 120 005

Tel: +32 – (0)9 – 264 45 19

Research interests: 

Bastiaan Aelbrecht

Bastiaan Aelbrecht

Phd Student
bastiaan.aelbrecht@ugent.be

office: 120 032

Tel: +32 – (0)9 – 264 45 19

 

Research interests: 

 Continuous tensor networks for quantum field theories
Quinten Mortier

Quinten Mortier

Phd Student
quinten.mortier@ugent.be

office: 120 032

Tel: +32 – (0)9 – 264 45 19

 

Research interests: 

Hamiltonian renormalization group for extended quantum systems
Continuous tensor networks (especially cMERA)
(Gaussian) fermionic PEPS
Markus Hauru

Markus Hauru

Postdoc
markus.hauru@ugent.be

office: 120 005

Tel: +32 – (0)9 – 264 49 76

 

Research Interests: 

I work on tensor network methods for many-body physics, especially in relation to real-space renormalization group transformations and decoherence.

Tom Vieijra

Tom Vieijra

Phd Student
tom.vieijra@ugent.be

office: 120 032

Tel: +32 – (0)9 – 264 45 19

 

Research Interests: 

– Machine learning inspired methods for strongly correlated (quantum and classical) many body systems
– Physics inspired techniques in machine learning
– Phase transitions in many body physics
Laurens Lootens

Laurens Lootens

Phd Student

laurens.lootens@ugent.be

office: 120 005

Tel: +32 – (0)9 – 264 49 76

 

Research Interests: 

Topological order with tensor networks
2D stat mech models at criticality with strange correlators
(Non-) unitary fusion categories and their relation to (logarithmic) conformal field theories
Laurens Vanderstraeten

Laurens Vanderstraeten

Postdoc

laurens.vanderstraeten@ugent.be

office: 120 005

Tel: +32 – (0)9 – 264 48 38

 

Research interests:

Matrix product states and tangent-space methods
Low-energy dynamics of quantum spin chains
Projected entangled-pair states: ground states and excitations

Karel Van Acoleyen

Karel Van Acoleyen

Postdoc

karel.vanacoleyen@ugent.be

office:  120 005

Tel: +32 – (0)9 – 264 47 62

 

Teaching:

Theory of relativity
Theory of relativity and classical fields

Jutho Haegeman

Jutho Haegeman

Professor

jutho.haegeman@ugent.be

office: 120 005

Tel: +32 – (0)9 – 264 49 71

 

Research:

I am interested in strongly correlated quantum many body systems and exotic phenomena in quantum condensed matter physics. My research focusses on studying these systems using the formalism of tensor networks, which offer a faithful description of low-energy quantum many body states, as motivated by the area law scaling of entanglement entropy. On the one hand, tensor network states enable accurate ab-initio simulations of the low-energy properties of strongly interacting Hamiltonians, while on the other they allow us to tackle general questions from the wave function point of view, irrespective of the details of any Hamiltonian or Lagrangian. Tensor network states also provide an interesting new perspective to holography and quantum gravity.

Google Scholar — arXiv — PhD thesis — Github

Teaching:

I am currently teaching a course in Electromagnetism (2nd Bachelor Physics and Astronomy, UGent)

Personal:

Hiking and photography

Robijn Vanhove

Robijn Vanhove

PhD student

robijn.vanhove@ugent.be

office: 120 005

Tel: +32 – (0)9 – 264 49 76

 

Research interests:

Tensor network theory for topological order
Symmetry protected topological order phase detection with tensor networks
Anomalies in condensed matter systems
Numerical simulation with projected entangled pair states

Benoît Tuybens

Benoît Tuybens

PhD student

benoit.tuybens@ugent.be

office:  120.032

Tel:  +32 – (0)9 – 264 45 19

 

Research interests:

Entanglement for gauge theories (and QFTs)
Continous tensor network states (cMPS and cMERA) for QFTs
Quenches (real time evolution) in QFTs (for example Schwinger model) using time-dependent cMPS ansatz

Bram Vanhecke

Bram Vanhecke

PhD student

bavhecke.vanhecke@ugent.be

office:  120 005

Tel:  +32 – (0)9 – 264 49 76

 

Research interests:

I study classical lattice and quantum gauge theory, making use of various tensor network techniques.

Alexis Schotte

Alexis Schotte

Phd student

alexis.schotte@ugent.be

bureau:  120 005

Tel:  +32  – (0)9 – 264 49 76

 

Research interests:

Anyons and topological order

Topological quantum computing and error correcting codes

Frank Verstraete

Frank Verstraete

Professor

frank.verstraete@ugent.be

office: 120 006

Tel:  +32 – (0)9 – 264 48 02

 

research interests:

Quantum Information Theory and the Theory of Entanglement
Strongly Correlated Quantum Systems and their Numerical Simulation
Linear and Multilinear Algebra

Klaas Gunst

Klaas Gunst

PhD student

klaas.gunst@ugent.be

office:  120 005

Tel:  +32  – (0)9 – 264 49 76

 

Research interests:

The application of tensor networks on quantum chemical systems

Gertian Roose

Gertian Roose

PhD student

gertian.roose@ugent.be

office: 120 032

Tel: +32 – (0)9 – 264 45 19

 

Research interests:

Dynamical mass generation in the Gross-Neveu model using tensor network methods

Maarten Van Damme

Maarten Van Damme

PhD student

maarten.vandamme@ugent.be

office: 120 005

Tel: +32 – (0)9 – 264 49 76

 

Research interests:

Investigating spin chain excitations using matrix product states

Simulation of thermalisation