Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session G64: Bosonic Quantum Error Correction Codes
11:30 AM–1:54 PM,
Tuesday, March 7, 2023
Room: Room 415
Sponsoring
Unit:
DQI
Chair: Jahan Claes, Yale University
Abstract: G64.00009 : Quantum control and error correction with two bosonic modes (1/2)*
1:06 PM–1:18 PM
Presenter:
Cassady Smith
(Yale University)
Authors:
Cassady Smith
(Yale University)
Akshay Koottandavida
(Yale University)
Ioannis Tsioutsios
(Yale University)
Aikaterini Kargioti
(Yale University)
Luigi Frunzio
(Yale University)
Michel H Devoret
(Yale University)
In recent years there has been a lot of progress with qubits encoded in states of single bosonic modes.
However, logical qubits encoded in the joint Hilbert space of two bosonic modes offer simpler error syndromes in comparison.
Advantageously, the error syndromes for these codes can be engineered in such a way that they are transparent to ancilla errors.
In our experiment, we explore these two-mode bosonic encodings for quantum error correction in 3D superconducting microwave architecture.
We use a cross-Kerr tuning parametric process, which was recently demonstrated in a single mode system, to dynamically modify the interaction
Hamiltonian between the bosonic modes and an ancilla transmon. We use this method to also perform joint-Wigner tomography on the two-mode
states.
Part-one of this two-part presentation will address the cross-Kerr tuning process.
*ARO, NSF, AFOSR, and YINQE
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