Journal ArticleDOI
Error correction of a logical grid state qubit by dissipative pumping
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This article is published in Nature Physics.The article was published on 2022-02-07. It has received 38 citations till now. The article focuses on the topics: Qubit & Dissipative system.read more
Citations
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Journal ArticleDOI
Real-time quantum error correction beyond break-even
Volodymyr Sivak,Alec Eickbusch,Baptiste Royer,S. C. Singh,Ioannis Tsioutsios,S. Ganjam,Alessandro Miano,B. L. Brock,Amin Ding,Luigi Frunzio,Steven Girvin,Robert Schoelkopf,Michel Devoret +12 more
TL;DR: In this article , a fully stabilized and error-corrected logical qubit whose quantum coherence is substantially longer than that of all the imperfect quantum components involved in the QEC process, beating the best of them with a coherence gain of 2.27 ± 0.07.
Journal ArticleDOI
Engineered dissipation for quantum information science
TL;DR: In this article , a review of the application of dissipation engineering to quantum error correction, quantum sensing and quantum simulation is presented, highlighting the role of such tools in quantum simulation and error correction.
Posted Content
Model-Free Quantum Control with Reinforcement Learning
TL;DR: In this article, a circuit-based approach for training a reinforcement learning agent on quantum control tasks in a model-free way is proposed, where the agent learns its parameters through trial-and-error interaction with the quantum system, using measurements as the only source of information about the quantum state.
Journal ArticleDOI
Model-Free Quantum Control with Reinforcement Learning
TL;DR: In this article , a circuit-based approach for training a reinforcement learning agent on quantum control tasks in a model-free way is proposed, where the agent learns its parameters through trial-and-error interaction with the quantum system, using measurement outcomes as the only source of information about the quantum state.
Journal ArticleDOI
Fast universal control of an oscillator with weak dispersive coupling to a qubit
TL;DR: In this paper , the authors proposed a noise-resilient protocol for the universal quantum control of a nearly harmonic oscillator that takes advantage of an in situ enhanced nonlinearity instead of harnessing a bare non-linearity.
References
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Journal ArticleDOI
Quantum Computing in the NISQ era and beyond
TL;DR: Noisy Intermediate-Scale Quantum (NISQ) technology will be available in the near future as mentioned in this paper, which will be useful tools for exploring many-body quantum physics, and may have other useful applications.
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QuTiP 2: A Python framework for the dynamics of open quantum systems ✩
TL;DR: The Quantum Toolbox in Python as mentioned in this paper has been updated with new features, enhanced performance, and made changes in the API for improved functionality and consistency within the package, as well as increased compatibility with existing conventions used in other scientific software packages for Python.
Journal ArticleDOI
QuTiP: An open-source Python framework for the dynamics of open quantum systems !
TL;DR: An object-oriented open-source framework for solving the dynamics of open quantum systems written in Python that is particularly well suited to the fields of quantum optics, superconducting circuit devices, nanomechanics, and trapped ions, while also being ideal for use in classroom instruction.
Journal ArticleDOI
Encoding a qubit in an oscillator
TL;DR: In this paper, error-correcting codes are constructed that embed a finite-dimensional code space in the infinite-dimensional Hilbert space of a system described by continuous quantum variables to protect encoded quantum information against shifts in the amplitude or phase of a d-state system.
Journal ArticleDOI
Extending the lifetime of a quantum bit with error correction in superconducting circuits
Nissim Ofek,Andrei Petrenko,Reinier Heeres,Philip Reinhold,Zaki Leghtas,Zaki Leghtas,Brian Vlastakis,Yehan Liu,Luigi Frunzio,Steven Girvin,Liang Jiang,Mazyar Mirrahimi,Mazyar Mirrahimi,Michel Devoret,Robert Schoelkopf +14 more
TL;DR: A QEC system that reaches the break-even point by suppressing the natural errors due to energy loss for a qubit logically encoded in superpositions of Schrödinger-cat states of a superconducting resonator is demonstrated.