5 papers · 1 filter
Autonomous Quantum Error Correction of Spin-Oscillator Hybrid Qubits
Sungjoo Cho, Ju-yeon Gyhm, Hyukjoon Kwon +1
We propose a novel measurement-free scheme for stabilizing a spin-oscillator hybrid qubit via autonomous quantum error correction. The engineered Lindbladian renders the code space…
Code-agnostic bosonic noise suppression with hybrid rotations
Saurabh U. Shringarpure, Siheon Park, Sungjoo Cho +4
Physical-level noise on traveling bosonic modes remains a critical bottleneck for scalable quantum information processing. We show that for any single-mode bosonic code (qumode) co…
No-Go Theorem for Norm-Based Nonclassicality Certification with Linear Functionals
Soumyakanti Bose, Yong-Siah Teo, Hyukjoon Kwon +1
Despite various approaches to encode nonclassical light, most existing formulations either suffer from limited practicality or rely on optimization procedures that are computationa…
Ballistic bosonic noise suppression with hybrid qumode-qubit rotation gates
Saurabh U. Shringarpure, Siheon Park, Sungjoo Cho +4
Noise suppression is of paramount importance for reliable quantum information processing and computation. We show that for any single-mode bosonic code (qumode) corrupted by therma…
Amplifying hybrid entangled states and superpositions of coherent states
InU Jeon, Sungjoo Cho, Hyunseok Jeong
We compare two amplification schemes, photon addition and then subtraction () and successive photon addition (), applied to hybrid enta…