Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 8063657 | Systems and devices for quantum processor architectures A quantum processor may employ a heterogeneous qubit-coupling architecture to reduce the average number of intermediate coupling steps that separate any two qubits in the quantum processor, while limiting the overall susceptibility to noise of the qubits. The archit... | 11/22/2011 |
| 7969178 | Method and apparatus for controlling qubits with single flux quantum logic In one embodiment, the disclosure relates to a method and apparatus for controlling the energy state of a qubit by bringing the qubit into and out of resonance by coupling the qubit to a flux quantum logic gate. The qubit can be in resonance with a pump signal, with... | 06/28/2011 |
| 7898282 | Systems, devices, and methods for controllably coupling qubits A system for communicably coupling between two superconducting qubits may include an rf-SQUID coupler having a loop of superconducting material interrupted by a compound Josephson junction and a first magnetic flux inductor configured to controllably couple to the c... | 03/01/2011 |
| 7619437 | Coupling methods and architectures for information processing A structure comprising (i) a first information device, (ii) a second information device, (iii) a first coupling element and (iv) a second coupling element is provided. The first information device has at least a first lobe and a second lobe that are in electrical co... | 11/17/2009 |
| 7268542 | Scanning SQUID microscope having position noise compensation A scanning SQUID microscope is set forth to provide improved output imaging. The SQUID microscope includes a vertically adjustable housing adapted to securely retain a SQUID loop or sensor. A scanning stage of the SQUID microscope is adapted to support a sample whil... | 09/11/2007 |
| 7170960 | Instantaneous clock recovery circuit A clock recovery circuit (10) for a superconductor system that enables the phase of a system clock to be instantaneously reset without any pulse interaction. The clock recovery circuit (10) includes a Josephson transmission line oscillator loop (14 | 01/30/2007 |
| 7057867 | Electrostatic discharge (ESD) protection clamp circuitry Electrostatic discharge (ESD) protection clamp circuitry including current tunneling circuitry to provide control current for controlling current shunting circuitry for shunting ESD current from the protected signal terminal. ... | 06/06/2006 |
| 6984977 | Scanning SQUID microscope with improved spatial resolution A scanning SQUID microscope for acquiring spatially resolved images of physical properties of an object includes a SQUID sensor arranged in perpendicular to the plane of the object under investigation for detecting tangential component of the magnetic field generate... | 01/10/2006 |
| 6917216 | Superconductor output amplifier A single flux quantum (SFQ) pulse is generated (502) by injecting a superconductor output signal as a first signal at a “start” input (108) coupled to a superconductor delay element (104). The SFQ pulse is reflected (504) back and for... | 07/12/2005 |
| 6724216 | Rapid single-flux-quantum logic circuit and rapid single-flux-quantum output conversion circuit A rapid single-flux-quantum RSFQ logic circuit includes a first circuit portion having a first end grounded and having in-series connected first and second Josephson junctions. A second circuit portion has a first end grounded and has in-series connected third and f... | 04/20/2004 |
| 6483339 | Single flux quantum series biasing technique using superconducting DC transformer The level of bias current (12) required by a superconductor integrated circuit (2 & 4) is lowered by separating the circuit into portions having separate ground planes and supplying the bias current to the circuit portion (2) in one ground plane in series... | 11/19/2002 |
| 5834794 | Superconducting device Disclosed is a superconducting device comprising a logic SQUID and a readout SQUID magnetically coupled with the logic SQUID, which are fabricated using a single layer of an oxide high-temperature superconductor, wherein the logic SQUID comprising a super... | 11/10/1998 |
| 5287057 | Superconducting circuit having a rectifier for converting a bipolar signal to a unipolar signal A superconducting circuit system comprises a biasing circuit for producing a bias current that changes periodically, and a superconducting rectifier circuit driven by the bias current. The superconducting rectifier circuit is supplied with a first pulse t... | 02/15/1994 |
| 5051627 | Superconducting nonhysteretic logic design A family of logic circuits using nonhysteretic superconducting quantum interference devices (SQUIDs) connected together to perform various functions using a common operating principle. Each circuit has an output line, first and second power supply lines h... | 09/24/1991 |
| 4713562 | Josephson-junction logic circuit A Josephson-junction logic circuit comprises at least one Josephson-junction logic gate which has a variable threshold-type superconductive quantum interference element. The Josephson-junction logic gate comprises a superconductive inductance loop, and at... | 12/15/1987 |
| 4710651 | Josephson-junction logic device A Josephson-junction logic device comprising at least first and second superconductive loops and at least two logic input signal lines, each of the logic input signal lines arranged opposite to one of the superconductive loops so that each logic input sig... | 12/01/1987 |
| 4678945 | Unidirectional single-flux-quantum logic circuit A superconducting logic circuit has a first and a second one-junction SQUID's (superconducting quantum interference device) connected by a superconducting inductor, the junction of the second SQUID having a larger critical current than that of the first S... | 07/07/1987 |
| 4623804 | Fluxoid type superconducting logic element Disclosed is a fluxoid type superconducting logic element essentially comprising a pair of SQUIDs connected with each other so as to put one of said SQUIDs into its "firing state" and the other into its "extinction state" in response to an input signal in... | 11/18/1986 |
| 4559459 | High gain non-linear threshold input Josephson junction logic circuit A high gain Josephson junction logic circuit is provided. The novel circuit comprises a high gain non-linear threshold input Josephson junction logic circuit which is coupled to a high gain Josephson junction amplifier. The high gain input circuit provide... | 12/17/1985 |
| 4496854 | On-chip SQUID cascade A superconducting circuit including at least two DC SQUID stages integrated on the same superconducting chip and coupled by a circuit providing efficient transfer of current from the first SQUID stage to the second SQUID stage with large bandwidth. Each S... | 01/29/1985 |
| 4423430 | Superconductive logic device A superconductive logic device incorporating at least one Josephson junction comprises two superconductive electrodes, that is, a base electrode and a counter electrode with a thin insulating layer therebetween. The counter electrode has an extension for ... | 12/27/1983 |
| 4413197 | Four Josephson junction direct-coupled and gate circuit A Josephson junction AND gate logic circuit is provided which has an enhanced and improved operating window area. The circuit comprises two parallel branches one for the input and one for the output connected between a biasing current source and a ground ... | 11/01/1983 |
| 4117354 | Two-part current injection interferometer amplifiers and logic circuits Josephson junction interferometers having nonlinear switching or threshold characteristics are disclosed. The nonlinear threshold characteristic is achieved in a preferred manner by applying an injection current to the interferometer at a point on the int... | 09/26/1978 |
| 3978351 | Quantum interference Josephson logic devices A quantum interference Josephson junction logic device is disclosed which comprises three or more junctions connected in parallel which are capable of carrying Josephson current and includes means integral with at least one of the junctions for carrying a... | 08/31/1976 |
