Superconducting Quantum Devices Group

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Monthly Archives: September 2015

Group members

Chunqing’s paper published on PRL!

September 26, 2015 alupascu

Chunqing Deng’s paper titled “Observation of Floquet States in a Strongly Driven Artificial Atom” has been published this week in Physical Review Letters. Congratulations Chunqing!

Here is a link to the paper.

Publications

New paper on Arxiv on Floquet state observation

September 2, 2015 alupascu

A new paper has been posted on the Arxiv titled

Floquet_states“Observation of Floquet states in a strongly driven artificial atom”

Chunqing Deng and coauthors study the dynamics of a driven flux qubit with driving frequencies higher than the qubit splitting itself. This huge driving field modifies the system in a way that a Floquet description is required, as can be seen in the adjacent figure from the paper.

 

Publications

New paper on quasiparticle tunneling published on PRB

September 2, 2015 alupascu

The latest publication by Mustafa Bal et al., titled

“Dynamics of parametric fluctuations induced by quasiparticle tunneling in superconducting flux qubits”

has been published on PRB 91, 195434 (2015).

These results demonstrate the importance of considering quasiparticles as a source of decoherence in flux qubits.

quasiparticles

Institute for Quantum Computing

Introduction

We are the Superconducting Quantum Device group. Our work focuses on research on quantum information and fundamental aspects of quantum mechanics with superconducting "artificial atoms".

Recent Posts

  • Our paper on a qutrit Hadamard gate published in Physical Review Letters
  • Recent preprints on high anharmonicity flux circuits
  • Quantum measurements in a different basis
  • Talks at AQC 2019 available online
  • Preprint on three-body coupler

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