Topological entanglement stabilization in superconducting quantum circuits
Topological properties of quantum systems are among 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 sy...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2023-05-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.5.023088 |
| _version_ | 1797210490152157184 |
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| author | Guliuxin Jin Eliska Greplova |
| author_facet | Guliuxin Jin Eliska Greplova |
| author_sort | Guliuxin Jin |
| collection | DOAJ |
| description | Topological properties of quantum systems are among 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 nontrivial regime, while entanglement in the trivial regime is highly susceptible to local noise. We supplement our scheme with an experimentally realistic and detailed proposal based on coupled superconducting resonators and qubits. Our proposal sets an 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. |
| first_indexed | 2024-04-24T10:11:25Z |
| format | Article |
| id | doaj.art-15cf252779874e50985d5ed29ac7c61d |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:11:25Z |
| publishDate | 2023-05-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-15cf252779874e50985d5ed29ac7c61d2024-04-12T17:30:45ZengAmerican Physical SocietyPhysical Review Research2643-15642023-05-015202308810.1103/PhysRevResearch.5.023088Topological entanglement stabilization in superconducting quantum circuitsGuliuxin JinEliska GreplovaTopological properties of quantum systems are among 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 nontrivial regime, while entanglement in the trivial regime is highly susceptible to local noise. We supplement our scheme with an experimentally realistic and detailed proposal based on coupled superconducting resonators and qubits. Our proposal sets an 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.http://doi.org/10.1103/PhysRevResearch.5.023088 |
| spellingShingle | Guliuxin Jin Eliska Greplova Topological entanglement stabilization in superconducting quantum circuits Physical Review Research |
| title | Topological entanglement stabilization in superconducting quantum circuits |
| title_full | Topological entanglement stabilization in superconducting quantum circuits |
| title_fullStr | Topological entanglement stabilization in superconducting quantum circuits |
| title_full_unstemmed | Topological entanglement stabilization in superconducting quantum circuits |
| title_short | Topological entanglement stabilization in superconducting quantum circuits |
| title_sort | topological entanglement stabilization in superconducting quantum circuits |
| url | http://doi.org/10.1103/PhysRevResearch.5.023088 |
| work_keys_str_mv | AT guliuxinjin topologicalentanglementstabilizationinsuperconductingquantumcircuits AT eliskagreplova topologicalentanglementstabilizationinsuperconductingquantumcircuits |