RSS icon
Twitter icon
Facebook icon
Vimeo icon
YouTube icon

Defect Centers in Diamond for Quantum Applications: Prospects & Problems

March 4, 2013 - 12:30pm
Speaker: 
Oliver Benson
Institution: 
Humboldt University, Berlin

Defect centers in diamonds have been studied extensively in the last years [1]. They represent single photon sources with stable operation even at room temperature. Additionally, their spin state provides a long decoherence time and can be controlled and read-out optically.
In this talk we focus on nitrogen vacancy (NV) centers in nanocrystalline diamond. First, we introduce basic properties of nanodiamonds and introduce a method to assemble fundamental nanophotonic devices [2]. Then, we report on a novel material platform based on direct laser writing in polymers which allows for fabrication of arbitrary three-dimensional quantum photonic structures [3].
In a second part of the talk we discuss decoherence of the electronic states in NV centers, which is crucial for possible applications in quantum information processing [4]. Finally, we show how a scanning probe can be functionalized with a nanodiamond to perform three-dimensional lifetime imaging with a single quantum emitter.

[1] F. Jelezko, and J. Wrachtrup, Phys. Stat. Sol. A 203, 3207 (2006); I. Aharonovich, A. D. Greentree and S. Prawer, Nature Phys. 5, 397 (2011).
[2] O. Benson, Nature 480, 193 (2011).
[3] A. W. Schell, et al., arXiv:1209.2036
[4] J. Wolters et al., Phys. Rev. Lett. 110, 027401 (2013); J. Wolters, et al., arXiv:1301.4544

1201 Physics Building
College Park, MD 20742

Subscribe to A Quantum Bit 

Quantum physics began with revolutionary discoveries in the early twentieth century and continues to be central in today’s physics research. Learn about quantum physics, bit by bit. From definitions to the latest research, this is your portal. Subscribe to receive regular emails from the quantum world. Previous Issues...

Sign Up Now

Sign up to receive A Quantum Bit in your email!

 Have an idea for A Quantum Bit? Submit your suggestions to jqi-comm@umd.edu