ICTS:30961

Video URL

Quantum error correction for unresolvable spin ensemble

Quantum error correction for unresolvable spin ensemble

(2025). Quantum error correction for unresolvable spin ensemble. SciVideos. https://youtu.be/PrN4ENJrXX4

Quantum error correction for unresolvable spin ensemble. SciVideos, Jan. 22, 2025, https://youtu.be/PrN4ENJrXX4 

          @misc{ scivideos_ICTS:30961,
            doi = {},
            url = {https://youtu.be/PrN4ENJrXX4},
            author = {},
            keywords = {},
            language = {en},
            title = {Quantum error correction for unresolvable spin ensemble},
            publisher = {},
            year = {2025},
            month = {jan},
            note = {ICTS:30961 see, \url{https://scivideos.org/icts-tifr/30961}}
          }
Harsh Sharma
Talk numberICTS:30961
Source RepositoryICTS-TIFR
Collection

Abstract

Spin ensembles are promising quantum technological platforms, but their utility relies on the ability to perform quantum error correction (QEC) for decoherences in these systems. Typical QEC for ensembles requires addressing individually resolved qubits, but this is practically challenging in most realistic architectures. Here, we propose QEC schemes for unresolvable spin ensembles. By using degenerate superpositions of excited states, which are fundamentally mixed, we find codes that can protect against both individual and collective errors, including dephasing, decay, and pumping. We show how information recovery can be achieved with only collective measurement and control, and illustrate its applications in extending memory lifetime and loss-tolerant sensing.