Optimized driving of superconducting artificial atoms for improved single-qubit gates

By Jerry M. Chow, Leonardo DiCarlo, Jay M. Gambetta, F. Motzoi, Luigi Frunzio, Steven M. Girvin, Robert J. Schoelkopf. 2010

177 citations recorded by the source corpus.

We employ pulse shaping to abate single-qubit gate errors arising from the weak anharmonicity of transmon superconducting qubits. By applying shaped pulses to both quadratures of rotation, a phase error induced by the presence of higher levels is corrected. Using a derivative of the control on the quadrature channel, we are able to remove the effect of the anharmonic levels for multiple qubits coupled to a microwave resonator. Randomized benchmarking is used to quantify the average error per gate, achieving a minimum of 0.007+/-0.005 using 4 ns-wide pulse.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/0c0a07a89b9c55d7a063a8e06636c946c509ebca

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Artificial Intelligence

In Atomic and Molecular Physics, and Optics

Citations in the corpus

Training Schrödinger’s cat: quantum optimal control (2015, background): “In quantum processor candidates based on superconducting circuits, leakage to non-computational states in the most common type of qubit, the transmon [78, 260, 284], was avoided and frequency crowding was accomodated [372, 430] thanks to optimal control results.”
Probabilistic error cancellation with sparse Pauli–Lindblad models on noisy quantum processors (2022, methodology): “√ The single-qubit gates X and X were implemented using the standard circuit quantum electrodynamics (cQED) all-microwave-control setup, using Gaussian pulses with calibrated DRAG decoupling [43, 44], each with a total gate time of 35.5 ns (4 σ Gaussian pulses).”
Experimental comparison of two quantum computing architectures (2017, background): “State preparation [20] and readout, as well as single-[21] and two-a 1 In the Quantum Experience hardware, the qubits are connected in a star-shaped pattern that provides four two-qubit interactions (see inset ﬁg.”
Single-qubit-gate error below 10 -4 in a trapped ion (2011, unknown): “[16] Chow, J.”
Efficient Z gates for quantum computing (2016, background): “However, only the pulse shaping component of DRAG is typically implemented [1, 8, 9], which cannot simultaneously correct both errors (we herein refer to DRAG by this definition).”