ITR/SY: Reversible Computing Using Superconducting Quantum Devices

EIA-0121428 Averin，Dmitri VSUNY at Stony BrookITR/SY Reversible Computing Using Superconducting Quantum Devices该项目正在探索两种选择，即利用超导器件独特的宏观量子特性来实现经典和量子可逆计算。在经典可逆计算的第一个目标下，使用参数量子型器件在基本集成电路中对数字信息进行可逆处理的实验演示，的比特编码的磁场的单量子进行了研究。 在量子可逆计算的第二个目标下，利用射频单电子晶体管作为读出器，实现了基于电荷的量子比特（“单库珀对盒”）中退相干的实验研究。 对退相干时间的测量和对抑制退相干的可能方法的研究有助于可扩展量子计算机的更快发展。

EIA-0121428Averin, Dmitri VSUNY at Stony BrookITR/SY Reversible Computing Using Superconducting Quantum DevicesThis project is exploring two options of using the unique macroscopic quantum properties of superconductor devices for implementation of classical and quantum reversible computing.Under the first objective of classical reversible computing, experimental demonstration of reversible processing of digital information in a basic integrated circuit using Parametric-Quantuton type devices, with bits coded by single quanta of magnetic field are investigated. The implementation of this type of computing device is opening a way to information processing at a rate of about 1025 bits per second per Centimeter Square.Under the second objective of quantum reversible computing, the experimental studies of decoherence in the charge-based qubit ("single-Cooper-Pair Box"), using the radio-frequency single-electron transistor as the readout, is being achieved. Measurement of the decoherence time and investigation of possible ways of suppressing the decoherence is facilitating more rapid development of a scalable quantum computer.