Massachusetts Institute of Technology (20240346350). TUNABLE INTERACTIONS FOR IMPLEMENTING TWO-QUBIT GATES, AND EXTENSIBLE CIRCUITS BUILT THEREFROM simplified abstract

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TUNABLE INTERACTIONS FOR IMPLEMENTING TWO-QUBIT GATES, AND EXTENSIBLE CIRCUITS BUILT THEREFROM

Organization Name

Massachusetts Institute of Technology

Inventor(s)

Augustin Di Paolo of Cambridge MA (US)

William D. Oliver of Lexington MA (US)

Catherine Leroux of Sainte-Julie CA (US)

Alexandre Blais of Sherbrooke CA (US)

TUNABLE INTERACTIONS FOR IMPLEMENTING TWO-QUBIT GATES, AND EXTENSIBLE CIRCUITS BUILT THEREFROM - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240346350 titled 'TUNABLE INTERACTIONS FOR IMPLEMENTING TWO-QUBIT GATES, AND EXTENSIBLE CIRCUITS BUILT THEREFROM

Simplified Explanation:

The patent application describes a system and method for implementing two-qubit gates and quantum computing circuits. Qubits are coupled using a coupler that is driven by an off-resonant microwave drive, allowing precise control of the interaction between qubits. This control can selectively reduce or increase the interaction, enabling the isolation of qubits or the implementation of fast, controlled-z, two-qubit gates with high fidelity.

Key Features and Innovation:

  • Implementation of two-qubit gates and quantum computing circuits
  • Precise control of the interaction between qubits using a coupler and off-resonant microwave drive
  • Selective reduction or increase of interaction for isolation or fast, controlled-z, two-qubit gates
  • Arrangement of qubits and couplers into unit cells for scalability in quantum computer design

Potential Applications:

  • Quantum computing
  • Quantum simulations
  • Quantum cryptography

Problems Solved:

  • Precise control of qubit interactions
  • Scalability in quantum computer design
  • High fidelity two-qubit gates

Benefits:

  • Improved quantum computing performance
  • Enhanced control over qubit interactions
  • Scalable quantum computer design

Commercial Applications:

  • Quantum computing technology for research institutions and tech companies
  • Quantum cryptography systems for secure communication
  • Quantum simulation software for scientific research

Questions about Quantum Computing: 1. How does the precise control of qubit interactions impact quantum computing performance? 2. What are the potential commercial applications of quantum computing technology?


Original Abstract Submitted

a system and method provide two-qubit gates and quantum computing circuits built therefrom. pairs of qubits are inductively or capacitively coupled using a coupler that is driven using an off-resonant microwave drive. by controlling the drive, the zz interaction between the qubits can be precisely controlled. in particular, the interaction may be selectively reduced or suppressed, thereby isolating the qubits from each other, or the interaction may be increased to provide fast, controlled-z, two-qubit gates with high fidelity. moreover, qubits and couplers may be arranged according to their resonant frequencies into unit cells and replicated to arbitrary size, thereby forming a quantum computer.