# Protecting solid-state spins from a strongly coupled environment

@article{Chen2018ProtectingSS, title={Protecting solid-state spins from a strongly coupled environment}, author={Mo Chen and Won Kyu Calvin Sun and Kasturi Saha and J C Jaskula and Paola Cappellaro}, journal={New Journal of Physics}, year={2018} }

Quantum memories are critical for solid-state quantum computing devices and a good quantum memory requires both long storage time and fast read/write operations. A promising system is the Nitrogen-Vacancy (NV) center in diamond, where the NV electronic spin serves as the computing qubit and a nearby nuclear spin as the memory qubit. Previous works used remote, weakly coupled $^{13}$C nuclear spins, trading read/write speed for long storage time. Here we focus instead on the intrinsic strongly…

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## References

SHOWING 1-10 OF 76 REFERENCES

Room-temperature high-speed nuclear-spin quantum memory in diamond

- Physics
- 2013

Quantum memories provide intermediate storage of quantum information until it is needed for the next step of a quantum algorithm or a quantum communication process. Relevant figures of merit are…

Room-Temperature Quantum Bit Memory Exceeding One Second

- Medicine, PhysicsScience
- 2012

High-fidelity control of a solid-state qubit is demonstrated, which preserves its polarization for several minutes and features coherence lifetimes exceeding 1 second at room temperature, and may allow for new applications in quantum information science.

Robust quantum-network memory using decoherence-protected subspaces of nuclear spins

- Physics
- 2016

The realization of a network of quantum registers is an outstanding challenge in quantum science and technology. We experimentally investigate a network node that consists of a single…

Universal control and error correction in multi-qubit spin registers in diamond.

- Physics, MedicineNature nanotechnology
- 2014

This work uses the electron spin of a nitrogen-vacancy centre in diamond to selectively initialize, control and read out carbon-13 spins in the surrounding spin bath and construct high-fidelity single- and two-qubit gates.

Universal Dynamical Decoupling of a Single Solid-State Spin from a Spin Bath

- Physics, MedicineScience
- 2010

This work strongly suppressed the coupling of a single spin in diamond with the surrounding spin bath by using double-axis dynamical decoupling and preserved the coherence was preserved for arbitrary quantum states, as verified by quantum process tomography.

Quantum error correction in a solid-state hybrid spin register

- Physics, MedicineNature
- 2014

It is demonstrated that joint initialization, projective readout and fast local and non-local gate operations can all be achieved in diamond spin systems, even under ambient conditions, paving the way to large-scale quantum computation.

High-fidelity projective read-out of a solid-state spin quantum register

- Physics, MedicineNature
- 2011

The preparation and measurement of a multi-spin quantum register in a low-temperature solid-state system is demonstrated by implementing resonant optical excitation techniques originally developed in atomic physics, and compatibility with qubit control is shown.

Room-temperature entanglement between single defect spins in diamond

- Physics
- 2013

Entanglement is the central yet fleeting phenomenon of quantum physics. Once being considered a peculiar counter-intuitive property of quantum theory1, it has developed into the most central element…

Gigahertz Dynamics of a Strongly Driven Single Quantum Spin

- Physics, MedicineScience
- 2009

By calibrating the spin rotation with an adiabatic passage, the room-temperature “strong-driving” dynamics of a single nitrogen vacancy center in diamond are measured and the breakdown of the rotating wave approximation provides opportunities for time-optimal quantum control of asingle spin.

1 / f noise: Implications for solid-state quantum information

- Physics
- 2014

The efficiency of the future devices for quantum information processing will be limited mostly by the finite decoherence rates of the individual qubits and quantum gates. Recently, substantial…