Details
| Original language | English |
|---|---|
| Article number | 2929 |
| Journal | Nature Communications |
| Volume | 10 |
| Issue number | 1 |
| Early online date | 2 Jul 2019 |
| Publication status | E-pub ahead of print - 2 Jul 2019 |
Abstract
The quantum noise of the vacuum limits the achievable sensitivity of quantum sensors. In non-classical measurement schemes the noise can be reduced to overcome this limitation. However, schemes based on squeezed or Schrödinger cat states require alignment of the relative phase between the measured interaction and the non-classical quantum state. Here we present two measurement schemes on a trapped ion prepared in a motional Fock state for displacement and frequency metrology that are insensitive to this phase. The achieved statistical uncertainty is below the standard quantum limit set by quantum vacuum fluctuations, enabling applications in spectroscopy and mass measurements.
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Biochemistry, Genetics and Molecular Biology(all)
- General Biochemistry,Genetics and Molecular Biology
- Physics and Astronomy(all)
- General Physics and Astronomy
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Nature Communications, Vol. 10, No. 1, 2929, 02.07.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Motional Fock states for quantum-enhanced amplitude and phase measurements with trapped ions
AU - Wolf, Fabian
AU - Shi, Chunyan
AU - Heip, Jan C.
AU - Gessner, Manuel
AU - Pezzè, Luca
AU - Smerzi, Augusto
AU - Schulte, Marius
AU - Hammerer, Klemens
AU - Schmidt, Piet Oliver
N1 - Funding information: We acknowledge support from the DFG through CRC 1227 (DQ-mat), projects A06 and B05, and the state of Lower Saxony, Hannover, Germany. M.G. acknowledges support by the Alexander von Humboldt foundation.
PY - 2019/7/2
Y1 - 2019/7/2
N2 - The quantum noise of the vacuum limits the achievable sensitivity of quantum sensors. In non-classical measurement schemes the noise can be reduced to overcome this limitation. However, schemes based on squeezed or Schrödinger cat states require alignment of the relative phase between the measured interaction and the non-classical quantum state. Here we present two measurement schemes on a trapped ion prepared in a motional Fock state for displacement and frequency metrology that are insensitive to this phase. The achieved statistical uncertainty is below the standard quantum limit set by quantum vacuum fluctuations, enabling applications in spectroscopy and mass measurements.
AB - The quantum noise of the vacuum limits the achievable sensitivity of quantum sensors. In non-classical measurement schemes the noise can be reduced to overcome this limitation. However, schemes based on squeezed or Schrödinger cat states require alignment of the relative phase between the measured interaction and the non-classical quantum state. Here we present two measurement schemes on a trapped ion prepared in a motional Fock state for displacement and frequency metrology that are insensitive to this phase. The achieved statistical uncertainty is below the standard quantum limit set by quantum vacuum fluctuations, enabling applications in spectroscopy and mass measurements.
UR - http://www.scopus.com/inward/record.url?scp=85068373194&partnerID=8YFLogxK
U2 - 10.48550/arXiv.1807.01875
DO - 10.48550/arXiv.1807.01875
M3 - Article
C2 - 31266940
AN - SCOPUS:85068373194
VL - 10
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 2929
ER -