scholarly journals Excited-state spin coherence of a single nitrogen–vacancy centre in diamond

2010 ◽  
Vol 6 (9) ◽  
pp. 668-672 ◽  
Author(s):  
G. D. Fuchs ◽  
V. V. Dobrovitski ◽  
D. M. Toyli ◽  
F. J. Heremans ◽  
C. D. Weis ◽  
...  
Keyword(s):  
Excited State ◽  
Nitrogen Vacancy ◽  
Spin Coherence ◽  
State Spin

scholarly journals Cooling a mechanical resonator with nitrogen-vacancy centres using a room temperature excited state spin–strain interaction

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
E. R. MacQuarrie ◽  
M. Otten ◽  
S. K. Gray ◽  
G. D. Fuchs
Keyword(s):  
Excited State ◽  
Room Temperature ◽  
Thermal State ◽  
Optical Cavity ◽  
Nitrogen Vacancy ◽  
Mechanical Resonator ◽  
Resonator Mode ◽  
Strain Interaction ◽  
State Spin ◽  
Strain Coupling

Abstract Cooling a mechanical resonator mode to a sub-thermal state has been a long-standing challenge in physics. This pursuit has recently found traction in the field of optomechanics in which a mechanical mode is coupled to an optical cavity. An alternate method is to couple the resonator to a well-controlled two-level system. Here we propose a protocol to dissipatively cool a room temperature mechanical resonator using a nitrogen-vacancy centre ensemble. The spin ensemble is coupled to the resonator through its orbitally-averaged excited state, which has a spin–strain interaction that has not been previously studied. We experimentally demonstrate that the spin–strain coupling in the excited state is 13.5±0.5 times stronger than the ground state spin–strain coupling. We then theoretically show that this interaction, combined with a high-density spin ensemble, enables the cooling of a mechanical resonator from room temperature to a fraction of its thermal phonon occupancy.

scholarly journals Using Ultrafast X-ray Spectroscopy To Address Questions in Ligand-Field Theory: The Excited State Spin and Structure of [Fe(dcpp)2]2+

2019 ◽  
Vol 58 (14) ◽  
pp. 9341-9350 ◽  
Author(s):  
Alexander Britz ◽  
Wojciech Gawelda ◽  
Tadesse A. Assefa ◽  
Lindsey L. Jamula ◽  
Jonathan T. Yarranton ◽  
...  
Keyword(s):  
Field Theory ◽  
Excited State ◽  
Ligand Field ◽  
Ligand Field Theory ◽  
X Ray ◽  
State Spin

Excited state spin ordering

1983 ◽  
Vol 31-34 ◽  
pp. 1123-1124
Author(s):  
K. Amaya ◽  
Y. Karaki ◽  
T. Haseda
Keyword(s):  
Excited State ◽  
Spin Ordering ◽  
State Spin

scholarly journals Spin coherence and 14 N ESEEM effects of nitrogen-vacancy centers in diamond with X-band pulsed ESR

2017 ◽  
Vol 72 ◽  
pp. 32-40 ◽  
Author(s):  
B.C. Rose ◽  
C.D. Weis ◽  
A.M. Tyryshkin ◽  
T. Schenkel ◽  
S.A. Lyon
Keyword(s):  
Nitrogen Vacancy ◽  
Spin Coherence ◽  
X Band ◽  
Nitrogen Vacancy Centers

scholarly journals Optical and Spin Coherence Properties of Nitrogen-Vacancy Centers Placed in a 100 nm Thick Isotopically Purified Diamond Layer

Nano Letters ◽  
2012 ◽  
Vol 12 (4) ◽  
pp. 2083-2087 ◽  
Author(s):  
Toyofumi Ishikawa ◽  
Kai-Mei C. Fu ◽  
Charles Santori ◽  
Victor M. Acosta ◽  
Raymond G. Beausoleil ◽  
...  
Keyword(s):  
Nitrogen Vacancy ◽  
Spin Coherence ◽  
Diamond Layer ◽  
Nitrogen Vacancy Centers
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