Surface code logical qubits in continuous baths have a true thermodynamic error threshold only for short-range interactions, as their decoherence maps exactly to the anisotropic Kondo model.
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A nonlocal topological Maxwell demon teleports ergotropy via surface-code quantum error correction with exponential protection below a threshold and a quadratic infrastructure cost enforcing the second law.
Lighter fluxonium qubits show lower susceptibility to measurement-induced state transitions than heavier counterparts due to reduced multi-photon resonance density, smaller required coupling, and more harmonic charge operator structure.
Evolutionary BP+OSD achieves higher decoding performance and lower complexity than standard BP+OSD on surface and QLDPC codes, especially under low-latency constraints.
Superconducting circuit hosts fractional fluxon states (fraxons) in a tailored Josephson potential to realize protected qudits with a STIRAP gate protocol.
Soft decoding with analog measurement data raises repetition-code thresholds by 25% and reduces error rates up to 30x on superconducting qubits, with one byte per shot sufficient for near-optimal performance.
citing papers explorer
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Quantum Decoherence of the Surface Code: A Generalized Caldeira-Leggett Approach
Surface code logical qubits in continuous baths have a true thermodynamic error threshold only for short-range interactions, as their decoherence maps exactly to the anisotropic Kondo model.
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Nonlocal Topological Maxwell Demon Teleporting Ergotropy via Surface-Code Quantum Error Correction
A nonlocal topological Maxwell demon teleports ergotropy via surface-code quantum error correction with exponential protection below a threshold and a quadratic infrastructure cost enforcing the second law.
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Measurement-induced state transitions across the fluxonium qubit landscape
Lighter fluxonium qubits show lower susceptibility to measurement-induced state transitions than heavier counterparts due to reduced multi-photon resonance density, smaller required coupling, and more harmonic charge operator structure.
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Evolutionary BP+OSD Decoding for Low-Latency Quantum Error Correction
Evolutionary BP+OSD achieves higher decoding performance and lower complexity than standard BP+OSD on surface and QLDPC codes, especially under low-latency constraints.
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Fraxonium: Fractional fluxon states for qudit encoding
Superconducting circuit hosts fractional fluxon states (fraxons) in a tailored Josephson potential to realize protected qudits with a STIRAP gate protocol.
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Soft information decoding with superconducting qubits
Soft decoding with analog measurement data raises repetition-code thresholds by 25% and reduces error rates up to 30x on superconducting qubits, with one byte per shot sufficient for near-optimal performance.