System and method for cryogenic hybrid technology computing and memory

A method of storing information, comprising:

• providing an array of memory cells, each memory cell comprising a superconducting device configured to operate at cryogenic temperatures, comprising a switchable magnetic state ferromagnetic material, and an interface configured to transmit stored data to, and to receive data for storage from, at least one superconducting transmission line, wherein each memory cell of the array of memory cells comprises at least two superconducting layers, at least one insulating layer, at least one ferromagnetic magnetic layer, wherein the respective memory cell, operated at the cryogenic temperatures, operates as a Josephson junction whose properties are dependent on a state of the at least one ferromagnetic layer;
• providing at least one of an asynchronous wave-pipelined datapath for the array of memory cells, and at least one serial bias circuit for the array of memory cells, configured to serially bias a plurality of the superconducting devices;
• communicating a first signal through the at least one superconducting transmission line addressed to a respective memory cell;
• storing data corresponding to the communicated first signal in the respective addressed memory cell;
• receiving a request for information addressed to the respective memory cell;
• and
• communicating a second signal through the at least one superconducting transmission comprising data corresponding to the stored data.

An array of memory cells, comprising:

• a plurality of superconducting devices serially-biased by at least one serial bias circuit, configured to operate at cryogenic temperatures, each superconducting device comprising a switchable magnetic state ferromagnetic material, and a data interface;
• an address decoder, configured to receive an address and to select at least one superconducting device from the plurality of superconducting devices corresponding to the received address;
• and
• at least one superconducting transmission line, being configured in a first mode to selectively receive data for storage in a respective superconducting device by presentation of the received data at the data interface of the respective superconducting device, in dependence on the received address, and being configured in a second mode to selectively transmit data retrieved from a respective data interface of a respective superconducting device in dependence on the received address,
• wherein each of the plurality of superconducting devices comprises at least two superconducting layers, at least one insulating layer, at least one ferromagnetic magnetic layer, wherein the cryogenic memory cell, operated at cryogenic temperatures, operates as a Josephson junction whose properties are dependent on a state of the at least one ferromagnetic layer.