Moving beyond the transmon: Noise-protected superconducting quantum
circuits
- URL: http://arxiv.org/abs/2106.10296v1
- Date: Fri, 18 Jun 2021 18:00:13 GMT
- Title: Moving beyond the transmon: Noise-protected superconducting quantum
circuits
- Authors: Andr\'as Gyenis, Agustin Di Paolo, Jens Koch, Alexandre Blais, Andrew
A. Houck, David I. Schuster
- Abstract summary: superconducting circuits offer opportunities to store and process quantum information with high fidelity.
Noise-protected devices constitute a new class of qubits in which the computational states are largely decoupled from local noise channels.
This Perspective reviews the theoretical principles at the heart of these new qubits, describes recent experiments, and highlights the potential of robust encoding of quantum information in superconducting qubits.
- Score: 55.49561173538925
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Artificial atoms realized by superconducting circuits offer unique
opportunities to store and process quantum information with high fidelity.
Among them, implementations of circuits that harness intrinsic noise protection
have been rapidly developed in recent years. These noise-protected devices
constitute a new class of qubits in which the computational states are largely
decoupled from local noise channels. The main challenges in engineering such
systems are simultaneously guarding against both bit- and phase-flip errors,
and also ensuring high-fidelity qubit control. Although partial noise
protection is possible in superconducting circuits relying on a single quantum
degree of freedom, the promise of complete protection can only be fulfilled by
implementing multimode or hybrid circuits. This Perspective reviews the
theoretical principles at the heart of these new qubits, describes recent
experiments, and highlights the potential of robust encoding of quantum
information in superconducting qubits.
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