超导相位量子比特中的宏观隧道分裂
Macroscopic tunnel splittings in superconducting phase qubits
摘要：
基于约瑟夫森结的量子比特相干时间对于量子计算来说太短了。最近探测超导相位量子比特的实验揭示了以前在跃迁能谱中看不到的精细分裂。这些分裂被归因于新的微观自由度（微谐振器），一个以前未知的退相干源。我们表明，宏观共振隧穿在极不对称的双势阱的相位量子比特可以有观测结果，是惊人的相似的观测数据。
英文摘要：
Prototype Josephson-junction based qubit coherence times are too short for quantum computing. Recent experiments probing superconducting phase qubits have revealed previously unseen fine splittings in the transition energy spectra. These splittings have been attributed to new microscopic degrees of freedom (microresonators), a previously unknown source of decoherence. We show that macroscopic resonant tunneling in the extremely asymmetric double well potential of the phase qubit can have observational consequences that are strikingly similar to the observed data.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
