Invention Publication
- Patent Title: PULSED STARK TONES FOR COLLISION MITIGATION
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Application No.: US17526837Application Date: 2021-11-15
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Publication No.: US20230153199A1Publication Date: 2023-05-18
- Inventor: Isaac Lauer , Neereja Sundaresan , Emily Pritchett
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Main IPC: G06F11/10
- IPC: G06F11/10 ; G06N10/00

Abstract:
Techniques for using stark tone pulses to mitigate cross-resonance collision in qubits are presented. A tone management component can control application of pulses to qubits by a tone generator component to mitigate undesirable frequency collisions between qubits. The tone generator component (TGC) can apply an off-resonant tone pulse to a qubit during a gate to induce a stark shift. TGC can apply a cross-resonance tone pulse to a control qubit at a frequency associated with the qubit, wherein the frequency can be stark shifted based on the off-resonant tone pulse. The qubit can be a target qubit, the control qubit itself, or a spectator qubit that can be coupled to the target qubit or the control qubit. The gate can be a cross-resonance gate, a two-qubit gate, or a measurement gate that can utilize an echo sequence, a target rotary, or active cancellation.
Public/Granted literature
- US11789812B2 Pulsed stark tones for collision mitigation Public/Granted day:2023-10-17
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