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Paper Abstract and Keywords
Presentation 2024-05-29 09:50
Hardware-efficient dissipative quantum error correction for squeezed cat codes
Gabriel Mintzer (MIT), Tomohito Shitara, Yuuki Tokunaga, Suguru Endo (NTT)
Abstract (in Japanese) (See Japanese page) 
(in English) Quantum information is constantly exposed to environmental noise that causes computation errors. Researchers have
developed quantum error-correcting codes (QECCs) to combat this information degradation. While qubit-based QECCs need
many physical qubits to robustly encode a single logical qubit, bosonic QECCs can encode a logical qubit with only one or a few
bosonic modes. Bosonic codes are generally described as having either translation or rotation symmetries; the recently-proposed
squeezed-cat code has both types and hence inherits the advantages of both as well. However, the existing methods for error
correction on the squeezed-cat code require strong nonlinearity and complex couplings to auxiliary systems and are thus experimentally challenging. In this work, we propose a hardware-friendly error-correction approach for the squeezed-cat code, inspired
by dissipative error correction for the GKP code. We then numerically verify that the performance of our squeezed-cat-code
error-correction strategy can surpass that of GKP-code for a broad range of photon-loss error rates in a realistic setup.
Keyword (in Japanese) (See Japanese page) 
(in English) Quantum error-correction / squeezed-cat codes / translation symmetries / / / / /  
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Conference Information
Committee QIT  
Conference Date 2024-05-28 - 2024-05-30 
Place (in Japanese) (See Japanese page) 
Place (in English) AIST Tsukuba 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Quantum Information 
Paper Information
Registration To QIT 
Conference Code 2024-05-QIT 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Hardware-efficient dissipative quantum error correction for squeezed cat codes 
Sub Title (in English)  
Keyword(1) Quantum error-correction  
Keyword(2) squeezed-cat codes  
Keyword(3) translation symmetries  
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1st Author's Name Gabriel Mintzer  
1st Author's Affiliation Massachusetts Institute of Technology (MIT)
2nd Author's Name Tomohito Shitara  
2nd Author's Affiliation NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT)
3rd Author's Name Yuuki Tokunaga  
3rd Author's Affiliation NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT)
4th Author's Name Suguru Endo  
4th Author's Affiliation NIPPON TELEGRAPH AND TELEPHONE CORPORATION (NTT)
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Speaker Author-1 
Date Time 2024-05-29 09:50:00 
Presentation Time 20 minutes 
Registration for QIT 
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