Würzburg Seminar on Quantum Field Theory and Gravity

Quantum energy teleportation is a theoretical concept in quantum physics that describes the transfer of energy from one location to another without the need for a physical medium to carry it. This is made possible by means of universal properties of quantum entanglement and measurement of quantum states.
The role of QET in physics and information engineering is largely unexplored, as the theory has not received much attention for long time since it was proposed about 15 years ago. To validate it on a real quantum processor, my research has tested the energy teleportation protocol in its most visible form for the first time on IBM's superconducting quantum computer. In my colloquium talk, I will explain the historical background of quantum energy teleportation, quantum circuits and quantum operations. Moreover I will present a concrete setup for a long-distance and large-scale quantum energy teleportation with real quantum networks.

Furthermore, as a study based on the high-energy physics perspective of quantum energy teleportation, I will present the results of quantum simulations with relativistic field theory. I turns out that phase diagram of the field theory is closely related with teleportation of energy.

References:
1. Kazuki Ikeda, “Realization of Quantum Energy Teleportation on Superconducting Quantum Hardware”, arXiv: 2301.02666 [quant-ph] https://arxiv.org/pdf/2301.02666.pdf.
2. Kazuki Ikeda,“Long-range quantum energy teleportation and distribution on a hyperbolic quantum network”, arXiv: 2301.11884 [quant-ph] (2023) https://arxiv.org/pdf/2301.11884.pdf
3. Kazuki Ikeda, “Criticality of quantum energy teleportation at phase transition points in quantum field theory”, Physical Review D 107 (7), L071502, 2023
4. Kazuki Ikeda, “Investigating global and topological order of states by local measurement and classical communication: Study on SPT phase diagrams by quantum energy teleportation” arXiv preprint arXiv:2302.09630, 2023