Implementation of dynamically corrected gates for single-spin qubits
arXiv:1309.5424 · doi:10.1103/PhysRevLett.112.050503
Abstract
Precise control of an open quantum system is critical to quantum information processing, but is challenging due to inevitable interactions between the quantum system and the environment. We demonstrated experimentally at room temperature a type of dynamically corrected gates on the nitrogen-vacancy centers in diamond. The infidelity of quantum gates caused by environment nuclear spin bath is reduced from being the second-order to the sixth-order of the noise to control field ratio, which offers greater efficiency in reducing the infidelity by reducing the noise level. The decay time of the coherent oscillation driven by dynamically corrected gates is shown to be two orders of magnitude longer than the dephasing time, and is essentially limited by spin-lattice relaxation. The infidelity of DCG, which is actually constrained by the decay time, reaches at room temperature and is further reducible by 2-3 orders of magnitudes via lowering temperature. The greatly reduced noise dependence of infidelity and the uttermost extension of the coherent time mark an important step towards fault-tolerant quantum computation in realistic systems.
5 pages, 4 figures
References in corpus (14)
- Dynamical decoupling and noise spectroscopy with a superconducting flux qubit
- Universal dynamical decoupling of a single solid-state spin from a spin bath
- A single-atom electron spin qubit in silicon
- Optimized Dynamical Decoupling in a Model Quantum Memory
- Decoherence-protected quantum gates for a hybrid solid-state spin register
- Extending Quantum Coherence in Diamond
- Dynamical Decoupling of a single electron spin at room temperature
- Dynamically Error-Corrected Gates for Universal Quantum Computation
- Single Ion Quantum Lock-In Amplifier
- High fidelity quantum gates via dynamical decoupling
- Noise-resistant control for a spin qubit array
- Radio-frequency magnetometry using a single electron spin
- Noise-resilient quantum evolution steered by dynamical decoupling
- Experimental protection of quantum gates against decoherence and control errors
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- Experimental Adiabatic Quantum Factorization under Ambient Conditions Based on a Solid-State Single Spin System
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- Fast coherent control of nitrogen-14 spins associated with nitrogen-vacancy centers in diamonds using dynamical decoupling
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- Scalable universal quantum gates between nitrogen-vacancy centers in levitated nanodiamonds arrays
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