Superconducting Qubits: Tunable Couplers & Gates II
D47: Superconducting Qubits: Tunable Couplers & Gates II
Mon. March 4, 3:00 p.m. – Mon. March 4, 6:00 p.m. CST
200CD
Sponsoring Units: DQIChair: Yao Lu, Fermi National Accelerator Laboratory (Fermilab)
Mon. March 4, 3:00 p.m. – 3:12 p.m. CST
200CD
Quantum gates involving topologically protected geometric phases and implemented via adiabatic evolution are more likely to be robust against pulse imperfections and parameter uncertainties. Recent techniques for implementing accelerated two-qubit adiabatic gates have used multiple control drives and a common auxiliary mode to imprint the geometric phase for a CZ gate. We propose a similar geometric CZ gate between two fluxonia implemented via parametric flux control of a tunable SQUID coupler. The SQUID coupler has the advantage of minimizing residual static ZZ interactions when idling at its off point while still enabling rapid parametric control.
Presented By
Daniel D Briseno-Colunga (Chapman University)
Authors
Daniel D Briseno-Colunga (Chapman University)
Noah J Stevenson (University of California, Berkeley)
Zahra Pedramrazi (Lawrence Berkeley National Laboratory)
Noah Goss (University of California Berkeley)
Abhishek Chakraborty (University of Rochester)
Bibek Bhandari (Institute for Quantum Studies, Chapman University)
Chuan-Hong Liu (University of California Berkeley)
Andrew N Jordan (University of Rochester)
Justin G Dressel (Chapman Univ)
David I Santiago (Lawrence Berkeley National Laboratory)
Irfan Siddiqi (University of California, Berkeley)
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Geometric Gates via Parametric Control of a SQUID Coupler
Mon. March 4, 3:00 p.m. – 3:12 p.m. CST
200CD
Quantum gates involving topologically protected geometric phases and implemented via adiabatic evolution are more likely to be robust against pulse imperfections and parameter uncertainties. Recent techniques for implementing accelerated two-qubit adiabatic gates have used multiple control drives and a common auxiliary mode to imprint the geometric phase for a CZ gate. We propose a similar geometric CZ gate between two fluxonia implemented via parametric flux control of a tunable SQUID coupler. The SQUID coupler has the advantage of minimizing residual static ZZ interactions when idling at its off point while still enabling rapid parametric control.
Presented By
Daniel D Briseno-Colunga (Chapman University)
Authors
Daniel D Briseno-Colunga (Chapman University)
Noah J Stevenson (University of California, Berkeley)
Zahra Pedramrazi (Lawrence Berkeley National Laboratory)
Noah Goss (University of California Berkeley)
Abhishek Chakraborty (University of Rochester)
Bibek Bhandari (Institute for Quantum Studies, Chapman University)
Chuan-Hong Liu (University of California Berkeley)
Andrew N Jordan (University of Rochester)
Justin G Dressel (Chapman Univ)
David I Santiago (Lawrence Berkeley National Laboratory)
Irfan Siddiqi (University of California, Berkeley)