Abstract
Traditionally, spectroscopy is performed by examining the position of absorption lines. However, at frequencies near the transition frequency, additional information can be obtained from the phase shift. In this work we consider the information about the transition frequency obtained from both the absorption and the phase shift, as quantified by the Fisher information in an interferometric measurement. We examine the use of multiple single-photon states, NOON states, and numerically optimized states that are entangled and have multiple photons. We find the optimized states that improve over the standard quantum limit set by independent single photons for some atom number densities.
| Language | English |
|---|---|
| Article number | 063804 |
| Pages | 1-6 |
| Number of pages | 6 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 93 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 7 Jun 2016 |
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Quantum-enhanced spectroscopy with entangled multiphoton states. / Dinani, Hossein T.; Gupta, Manish K.; Dowling, Jonathan P.; Berry, Dominic W.
In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 93, No. 6, 063804, 07.06.2016, p. 1-6.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Quantum-enhanced spectroscopy with entangled multiphoton states
AU - Dinani, Hossein T.
AU - Gupta, Manish K.
AU - Dowling, Jonathan P.
AU - Berry, Dominic W.
PY - 2016/6/7
Y1 - 2016/6/7
N2 - Traditionally, spectroscopy is performed by examining the position of absorption lines. However, at frequencies near the transition frequency, additional information can be obtained from the phase shift. In this work we consider the information about the transition frequency obtained from both the absorption and the phase shift, as quantified by the Fisher information in an interferometric measurement. We examine the use of multiple single-photon states, NOON states, and numerically optimized states that are entangled and have multiple photons. We find the optimized states that improve over the standard quantum limit set by independent single photons for some atom number densities.
AB - Traditionally, spectroscopy is performed by examining the position of absorption lines. However, at frequencies near the transition frequency, additional information can be obtained from the phase shift. In this work we consider the information about the transition frequency obtained from both the absorption and the phase shift, as quantified by the Fisher information in an interferometric measurement. We examine the use of multiple single-photon states, NOON states, and numerically optimized states that are entangled and have multiple photons. We find the optimized states that improve over the standard quantum limit set by independent single photons for some atom number densities.
UR - http://www.scopus.com/inward/record.url?scp=84973875448&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/arc/FT100100761
UR - http://purl.org/au-research/grants/arc/DP160102426
U2 - 10.1103/PhysRevA.93.063804
DO - 10.1103/PhysRevA.93.063804
M3 - Article
VL - 93
SP - 1
EP - 6
JO - Physical Review A: covering atomic, molecular, and optical physics and quantum information
T2 - Physical Review A: covering atomic, molecular, and optical physics and quantum information
JF - Physical Review A: covering atomic, molecular, and optical physics and quantum information
SN - 2469-9926
IS - 6
M1 - 063804
ER -