TY - JOUR
T1 - Enhanced gyroscope scale factor in an area-chirped array of coupled matter-wave interferometers
AU - Toland, John R.E.
AU - Arouh, Stephanie J.
AU - Diggins, Christopher J.
AU - Sorrentino, Christopher
AU - Search, Christopher P.
PY - 2012/4/18
Y1 - 2012/4/18
N2 - The utilization of atom interferometry for gyroscopes is of considerable interest because the detection of inertial rotations via the Sagnac effect has a potential 1010 greater sensitivity than optical gyroscopes. Here we analyze, in the presence of a rotation Ω, phase-coherent transport of atomic matter waves in a one-dimensional chain of N ring interferometers in which the sizes of the rings are chirped symmetrically about the center ring. The gyroscope scale factor of the area-chirped array for N 10 is several orders of magnitude larger than that for the unchirped array, which itself is larger than the scale factor of a Mach-Zehnder interferometer with the same enclosed area. This enhancement is achieved with total enclosed areas that are larger or smaller than that of the unchirped array by less than 25%. As such, the area chirp achieves rotation sensitivities with N 10 interferometers that would normally require N 100 rings of identical sizes.
AB - The utilization of atom interferometry for gyroscopes is of considerable interest because the detection of inertial rotations via the Sagnac effect has a potential 1010 greater sensitivity than optical gyroscopes. Here we analyze, in the presence of a rotation Ω, phase-coherent transport of atomic matter waves in a one-dimensional chain of N ring interferometers in which the sizes of the rings are chirped symmetrically about the center ring. The gyroscope scale factor of the area-chirped array for N 10 is several orders of magnitude larger than that for the unchirped array, which itself is larger than the scale factor of a Mach-Zehnder interferometer with the same enclosed area. This enhancement is achieved with total enclosed areas that are larger or smaller than that of the unchirped array by less than 25%. As such, the area chirp achieves rotation sensitivities with N 10 interferometers that would normally require N 100 rings of identical sizes.
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U2 - 10.1103/PhysRevA.85.043614
DO - 10.1103/PhysRevA.85.043614
M3 - Article
AN - SCOPUS:84859972425
SN - 1050-2947
VL - 85
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 4
M1 - 043614
ER -