Experimental observation of curved light-cones in a quantum field simulator

• Main Authors: Tajik, Mohammadamin, Gluza, Marek, Sebe, Nicolas, Schüttelkopf, Philipp, Cataldini, Federica, Sabino, João, Møller, Frederik, Ji, Si-Cong, Erne, Sebastian, Guarnieri, Giacomo, Sotiriadis, Spyros, Eisert, Jens, Schmiedmayer, Jörg
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2023
• Subjects: Science::Physics; Quantum Simulation; Curved Metrics
• Online Access: https://hdl.handle.net/10356/172029
• Institution: Nanyang Technological University

We investigate signal propagation in a quantum field simulator of the Klein-Gordon model realized by two strongly coupled parallel one-dimensional quasi-condensates. By measuring local phononic fields after a quench, we observe the propagation of correlations along sharp light-cone fronts. If the lo...