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Error rate of a superconducting circuit (1996)

Herr, Quentin P. ; Feldman, Marc J.

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 69 (1996), S. 694-695

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ISSN: 1077-3118

Quelle: AIP Digital Archive

Thema: Physik

Notizen: The bit-error rate of the Josephson junction single-flux-quantum comparator was measured as a function of bias current offset, at clock rates up to 10 GHz. The bit-error rate versus offset is a smooth curve, measured over 16 decades of incidence, which linearly extrapolates to 10−49 for optimal bias. The lowest rate actually measured was 5×10−17, corresponding to 4 errors counted in 130 h. © 1996 American Institute of Physics.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.117809

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High speed data link between digital superconductor chips (2002)

Herr, Quentin P. ; Smith, Andrew D. ; Wire, Michael S.

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 80 (2002), S. 3210-3212

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ISSN: 1077-3118

Quelle: AIP Digital Archive

Thema: Physik

Notizen: Superconductor digital devices using single-flux-quantum (SFQ) data encoding offer higher speed at lower power than any other integrated circuit technology. For this very reason, interconnect is challenging. We report SFQ data transfer between chips flip chip mounted on a passive microstrip carrier. The flip-chip structure achieves bandwidths greater than 250 GHz. Unlike previous designs, our signal lines are terminated at both ends; this is accomplished using a driver that produces a double-flux-quantum signal. We measured the circuit for pseudorandom data in the range of 10–60 Gb/s. Bit error rates are measured down to 1E−10 and extrapolate to negligible values. The signal power on the microstrip is only 30 nW at 60 Gb ps. © 2002 American Institute of Physics.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.1473687

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High-spin nuclear states and persistent currents in mesoscopic rings (1998)

Mikhailov, I.N. ; Quentin, P.

Springer

The European physical journal 1 (1998), S. 229-234

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ISSN: 1434-601X

Schlagwort(e): PACS:21.10.Re Collective levels and giant resonances – 21.60.Ev Collective models – 21.60.Jz Hartree-Fock and random-phase approximations

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract: An analogy is presented between periodic persistent currents in mesoscopic rings and staggerings of gamma energy transitions from some nuclear high-spin states. Various sources of damping of the expected periodic structures in both physical systems are compared. This discussion provides, in the nuclear case, a tentative explanation of the scarcity of such staggerings, their appearance near 150Gd and the existence of a spin-window for their observation.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/s100500050052

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