12 papers
Equal-time approach to real-time dynamics of quantum fields
Robert Ott, Torsten V. Zache, Jürgen Berges
We employ the equal-time formulation of quantum field theory to derive effective kinetic theories, first for a weakly coupled non-relativistic Bose gas, and then for a strongly cor…
Quantum thermalization of gauge theories: chaos, turbulence and universality
Niklas Mueller, Torsten V. Zache, Robert Ott
In this talk, we discuss real-time thermalization dynamics of Lattice Gauge Theory in 2+1 spacetime dimensions. While classical thermalization is commonly associated…
Quantum Variational Learning of the Entanglement Hamiltonian
Christian Kokail, Bhuvanesh Sundar, Torsten V. Zache +5
Learning the structure of the entanglement Hamiltonian (EH) is central to characterizing quantum many-body states in analog quantum simulation. We describe a protocol where spatial…
Scalable cold-atom quantum simulator for two-dimensional QED
Robert Ott, Torsten V. Zache, Fred Jendrzejewski +1
We propose a scalable analog quantum simulator for quantum electrodynamics (QED) in two spatial dimensions. The setup for the U(1) lattice gauge field theory employs inter-species…
Non-Abelian gauge invariance from dynamical decoupling
Valentin Kasper, Torsten V. Zache, Fred Jendrzejewski +2
Lattice gauge theories are fundamental to such distinct fields as particle physics, condensed matter or quantum information theory. The recent progress in the control of artificial…
Observation of gauge invariance in a 71-site Bose-Hubbard quantum simulator
Bing Yang, Hui Sun, Robert Ott +6
The modern description of elementary particles, as formulated in the Standard Model of particle physics, is built on gauge theories. Gauge theories implement fundamental laws of ph…