Kavli Affiliate: Eliska Greplova
| First 5 Authors: Guliuxin Jin, Eliska Greplova, , ,
| Summary:
Topological properties of quantum systems are one of the most intriguing
emerging phenomena in condensed matter physics. A crucial property of
topological systems is the symmetry-protected robustness towards local noise.
Experiments have demonstrated topological phases of matter in various quantum
systems. However, using the robustness of such modes to stabilize quantum
correlations is still a highly sought-after milestone. In this work, we put
forward a concept of using topological modes to stabilize fully entangled
quantum states, and we demonstrate the stability of the entanglement with
respect to parameter fluctuations. Specifically, we see that entanglement
remains stable against parameter fluctuations in the topologically non-trivial
regime, while entanglement in the trivial regime is highly susceptible. We
supplement our scheme with an experimentally realistic and detailed proposal
based on coupled superconducting resonators and qubits. Our proposal sets a
novel approach for generating long-lived quantum modes with robustness towards
disorder in the circuit parameters via a bottom-up experimental approach
relying on easy-to-engineer building blocks.
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