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Fast all-optical nuclear spin echo technique based on EIT

Walther, Andreas LU ; Nilsson, Adam N. LU ; Li, Qian LU ; Rippe, Lars LU and Kröll, Stefan LU (2016) In European Physical Journal D 70(8).
Abstract

Abstract: We demonstrate an all-optical Raman spin echo technique, using electromagneticallyinduced transparency (EIT) to create the pulses required for a spin echo sequence:initialization, pi-rotation, and readout. The first pulse of the sequence inducescoherence directly from a mixed state, and the technique is used to measure the nuclearspin coherence of an inhomogeneously broadened ensemble of rare-earth ions(Pr3 +) in acrystal. The rephasing pi-rotation is shown to offer an advantage of combining therephasing action with the operation of a phase gate, particularly useful in e.g. dynamicdecoupling sequences. In contrast to many previous experiments the sequence does notrequire any preparatory hole burning, which greatly... (More)

Abstract: We demonstrate an all-optical Raman spin echo technique, using electromagneticallyinduced transparency (EIT) to create the pulses required for a spin echo sequence:initialization, pi-rotation, and readout. The first pulse of the sequence inducescoherence directly from a mixed state, and the technique is used to measure the nuclearspin coherence of an inhomogeneously broadened ensemble of rare-earth ions(Pr3 +) in acrystal. The rephasing pi-rotation is shown to offer an advantage of combining therephasing action with the operation of a phase gate, particularly useful in e.g. dynamicdecoupling sequences. In contrast to many previous experiments the sequence does notrequire any preparatory hole burning, which greatly shortens the total duration of thesequence. The effect of the different pulses is characterized by quantum state tomographyand compared with simulations. We demonstrate two applications of the technique:compensating the magnetic field across our sample by monitoring T2 reductionsfrom stray magnetic fields, and measuring coherence times at temperatures up to 11 K,where standard preparation techniques are difficult to implement. We explore the potentialof the technique, in particular for systems with much shorter T2, and otherpossible applications. Graphical abstract: [Figure not available: see fulltext.]

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Quantum Optics
in
European Physical Journal D
volume
70
issue
8
publisher
EDP Sciences
external identifiers
  • scopus:84985911198
  • wos:000382741600005
ISSN
1434-6060
DOI
10.1140/epjd/e2016-60716-6
language
English
LU publication?
yes
id
bd26fa52-3f26-414b-a1e7-a0c7a1652d1c
date added to LUP
2016-12-09 13:11:07
date last changed
2017-01-01 08:42:48
@article{bd26fa52-3f26-414b-a1e7-a0c7a1652d1c,
  abstract     = {<p>Abstract: We demonstrate an all-optical Raman spin echo technique, using electromagneticallyinduced transparency (EIT) to create the pulses required for a spin echo sequence:initialization, pi-rotation, and readout. The first pulse of the sequence inducescoherence directly from a mixed state, and the technique is used to measure the nuclearspin coherence of an inhomogeneously broadened ensemble of rare-earth ions(Pr<sup>3 +</sup>) in acrystal. The rephasing pi-rotation is shown to offer an advantage of combining therephasing action with the operation of a phase gate, particularly useful in e.g. dynamicdecoupling sequences. In contrast to many previous experiments the sequence does notrequire any preparatory hole burning, which greatly shortens the total duration of thesequence. The effect of the different pulses is characterized by quantum state tomographyand compared with simulations. We demonstrate two applications of the technique:compensating the magnetic field across our sample by monitoring T<sub>2</sub> reductionsfrom stray magnetic fields, and measuring coherence times at temperatures up to 11 K,where standard preparation techniques are difficult to implement. We explore the potentialof the technique, in particular for systems with much shorter T<sub>2</sub>, and otherpossible applications. Graphical abstract: [Figure not available: see fulltext.]</p>},
  articleno    = {166},
  author       = {Walther, Andreas and Nilsson, Adam N. and Li, Qian and Rippe, Lars and Kröll, Stefan},
  issn         = {1434-6060},
  keyword      = {Quantum Optics},
  language     = {eng},
  month        = {08},
  number       = {8},
  publisher    = {EDP Sciences},
  series       = {European Physical Journal D},
  title        = {Fast all-optical nuclear spin echo technique based on EIT},
  url          = {http://dx.doi.org/10.1140/epjd/e2016-60716-6},
  volume       = {70},
  year         = {2016},
}