Realization of fractional quantum Hall state with interacting photons
- URL: http://arxiv.org/abs/2401.17022v1
- Date: Tue, 30 Jan 2024 13:55:41 GMT
- Title: Realization of fractional quantum Hall state with interacting photons
- Authors: Can Wang, Feng-Ming Liu, Ming-Cheng Chen, He Chen, Xian-He Zhao, Chong
Ying, Zhong-Xia Shang, Jian-Wen Wang, Yong-Heng Huo, Cheng-Zhi Peng, Xiaobo
Zhu, Chao-Yang Lu, Jian-Wei Pan
- Abstract summary: Bottom-up approach on an engineered quantum platform will provide opportunities to operate FQH states without external magnetic field.
We demonstrate a lattice version of photon FQH state using a programmable on-chip platform based on photon blockade and engineering gauge fields.
- Score: 7.469716894645766
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Fractional quantum Hall (FQH) states, known for their robust topological
order and the emergence of non-Abelian anyons, have captured significant
interest due to the appealing applications in fault-tolerant quantum computing.
Bottom-up approach on an engineered quantum platform will provide opportunities
to operate FQH states without external magnetic field and enhance local and
coherent manipulation of these exotic states. Here we demonstrate a lattice
version of photon FQH state using a programmable on-chip platform based on
photon blockade and engineering gauge fields on a novel two-dimensional circuit
quantum electrodynamics (QED) system. We first observe the effective photon
Lorentz force and butterfly spectrum in the artificial gauge field, a
prerequisite for FQH states. After adiabatic assembly of Laughlin FQH
wavefunction of 1/2 filling factor from localized photons, we observe strong
density correlation and chiral topological flow among the FQH photons. We then
verify the unique features of FQH states in response to external fields,
including the incompressibility of generating quasiparticles and the
smoking-gun signature of fractional quantum Hall conductivity. Our work
represents a significant advance in the bottom-up creation and manipulation of
novel strongly correlated topological quantum matter composed of photons and
opens up possibilities for fault-tolerant quantum information devices.
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