Modular array of fixed-coupling quantum systems for quantum information processing

Abstract

A quantum information processing system includes a first composite quantum system, a second composite quantum system, a plurality of electromagnetic field sources coupled to the system and an adjustable electromagnetic coupling between the first composite quantum system and the second composite quantum system.

1 . A quantum computing method, comprising
 applying an electromagnetic field to a plurality of qubits arranged in a waveguide cavity;   adjusting the electromagnetic field to generate a quantum state in each qubit of the plurality of qubits; and   adjusting the electromagnetic field to couple each qubit of the plurality of qubits to one another.   
     
     
         2 . The method as claimed in  claim 1  further comprising measuring the quantum state of each qubit of the plurality of qubits. 
     
     
         3 . A quantum computing method, comprising:
 generating a first electromagnetic field in a first housing having a first plurality of qubits;   generating an second electromagnetic field in a second housing having a second plurality of qubits; and   generating a third electromagnetic field between the first housing and the second housing to couple the first plurality of qubits to the second plurality of qubits.   
     
     
         4 . The method as claimed in  claim 3  further comprising:
 adjusting the first electromagnetic field to generate a quantum flux in each qubit of the first plurality of qubits; and 
 measuring the quantum flux of each qubit of the first plurality of qubits. 
 
     
     
         5 . The method as claimed in  claim 4  further comprising:
 adjusting the second electromagnetic field to generate a quantum flux in each qubit of the second plurality of qubits; and 
 measuring the quantum flux of each qubit of the second plurality of qubits. 
 
     
     
         6 . The method as claimed in  claim 3  further comprising tuning the third electromagnetic field to adjust coupling between the first plurality of qubits and the second plurality of qubits. 
     
     
         7 . The method as claimed in  claim 6  further comprising:
 adjusting the first electromagnetic field to adjust coupling between each qubit of the first plurality of qubits. 
 
     
     
         8 . The method as claimed in  claim 5  further comprising:
 adjusting the second electromagnetic field to adjust coupling between each qubit of the second plurality of qubits.