The quantum computing cloud platform of Institute of Physics, Chinese Academy of Sciences has completed the lattice point specification theory quantum simulation
Recently, the quantum computing cloud platform team of Beijing Institute of Quantum Information Science/Institute of Physics, Chinese Academy of Sciences has completed the research work of 10 superconducting quantum bits lattice point specification theory quantum simulation.
On June 17, 2022, the research results were published in Physical Review Research as an express article titled "Observation of emergent Z2 gauge invariance in a superconducting circuit based on superconducting quantum circuit system".
Norm invariance is one of the most fundamental principles of quantum field theory and lattice norm theory, which is widely used in modern physics. Its core idea is that the laws of physics remain invariant in transformations about the endowment degrees of freedom, which is the basis of the standard model of particle physics and can also help us understand physics such as quark confinement. In recent years, quantum simulation research has developed rapidly, but the objects being simulated are mostly condensed matter many-body systems, quantum chemistry and quantum statistics, etc., while there are few results on the simulation of field theory and particle physics phenomena. It is also realized that the manipulation techniques of multiple quantum bits can be used to study lattice point norm theory, on the one hand, many challenging problems in lattice point norm theory can potentially be solved by large-scale quantum simulations; on the other hand, quantum simulations provide a new perspective to study lattice point norm theory, i.e., non-equilibrium dynamics.
Superconducting quantum bits are one of the most promising technological routes for practical quantum computing and quantum simulation due to the scalability of its chip preparation technology, the stable operation capability of the measurement and control system for a long time, and the efficient execution of quantum circuits.
10 superconducting quantum bits device diagram, lattice schematic of effective hadronic quantities, and experimental waveform sequence
In this paper, we report that a special interacting quantum many-body system is realized in a device integrated with 10 superconducting quantum bits by precisely tuning the transverse and longitudinal fields of each quantum bit, whose effective Hamiltonian quantity consists of a Z2 lattice point canonical invariant term and several canonical breaking terms, but the experimental results through the dynamical evolution show that although there is no canonical invariance in the total effective model, the system still evolves a canonical invariant structure in the The experiments have successfully observed the formation of the local states corresponding to the canonically invariant generating elements through the dynamical evolution behavior of 10 superconducting quantum bits in the Hamiltonian quantities, and have been calibrated in detail, opening the way for the simulation of other lattice point canonical theories.
Quantum Cloud Platform, Institute of Physics, Chinese Academy of Sciences：
Beijing Institute of Quantum Information Science Quantum Cloud Platform：
Under a specific external field, the system can exhibit localized
The results of localization in relation to the initial state are shown
This work was supported by the National Natural Science Foundation of China (NSFC), the Chinese Academy of Sciences (CAS) Pilot Project B, and the Beijing Key Fund.
Article Link：
https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.4.L022060
