Year: 2023
Type: preprint
Abstract: The celebrated holographic duality posits a correspondence between a quantum gravity in a bulk spacetime and a quantum field theory (QFT) defined on its lower-dimensional boundary. This duality not only offers deep insights into the enigmatic nature of quantum gravity but also provides an efficient methodology for studying strongly correlated systems. However, despite its profound significance in modern physics, holographic duality remains a conjecture, and further experimental exploration is highly sought after. Here, we present the first experimental test of holographic duality between a three-dimensional bulk gravity and a two-dimensional boundary QFT using hyperbolic lattices. By experimentally measuring the classical scalar field propagator in hyperbolic circuits, we reproduce the equal-time two-point correlation function of the dual boundary conformal field theory (CFT), verifying its exponential dependence on the boundary separation and the conformal dimension-scalar mass relation. Furthermore, by leveraging the two-point correlation function, we reconstruct the entanglement entropy for a boundary CFT subsystem, confirming that it follows the Ryu-Takayanagi formula. These results constitute the first direct experimental evidence that quantum properties of the QFT can be holographically reproduced through its dual classical field in curved space. This heuristic experimental effort opens a new avenue for in-depth investigations on the holographic duality and extensive exploration of quantum-gravity-inspired phenomena in classical systems.
Source: arXiv (Cornell University)
Authors: Chen, Jingming, Chen, Feiyu, Yang, Linyun, Yang, Yuting, Chen, Liren, Chen, Zihan, Wu, Ying, Meng, Yan, Yan, Bei, Xi, Xiang, Zhu, Zhenxiao, Cheng, Minqi, Liu, Gui-Geng, Shum, Perry Ping, Chen, Hongsheng, Cai, Rong-Gen, Yang, Run-Qiu, Yang, Yihao, Gao, Zhen
Institutions: Southern University of Science and Technology, Chinese Academy of Sciences, Institute of High Energy Physics, China University of Mining and Technology, State Key Laboratory of Modern Optical Instruments, Zhejiang University, Nanjing University of Science and Technology, Nanyang Technological University, Institute of Theoretical Physics, Tianjin University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: National Natural Science Foundation of China, Government of Jiangsu Province, Natural Science Foundation of Jiangsu Province, Science, Technology and Innovation Commission of Shenzhen Municipality, Southern University of Science and Technology, Young Scientists Fund, Fundamental Research Funds for the Central Universities
OpenAlex ID: W4375959504