TY - JOUR
T1 - Electron Sagnac gyroscope in an array of mesoscopic quantum rings
AU - Toland, John R.E.
AU - Search, Chris P.
PY - 2010/2/1
Y1 - 2010/2/1
N2 - The Sagnac effect is an important phase coherent effect in optical and atom interferometers where rotations with respect to an inertial frame are measured in the interference pattern. We analyze the Sagnac effect in a serial array of mesoscopic ring shaped electron interferometers comprised of rings with half-circumferences comparable to the mean free path. The entire array is, however, much larger than the phase coherence length. Phase coherent transport at the level of individual rings leads to a measurable Sagnac effect in the conductance of the chain. We use the signal to noise ratio (SNR) to determine the number of rings needed to measure a desired rotation rate.
AB - The Sagnac effect is an important phase coherent effect in optical and atom interferometers where rotations with respect to an inertial frame are measured in the interference pattern. We analyze the Sagnac effect in a serial array of mesoscopic ring shaped electron interferometers comprised of rings with half-circumferences comparable to the mean free path. The entire array is, however, much larger than the phase coherence length. Phase coherent transport at the level of individual rings leads to a measurable Sagnac effect in the conductance of the chain. We use the signal to noise ratio (SNR) to determine the number of rings needed to measure a desired rotation rate.
KW - Ballistic transport
KW - Gyroscope
KW - Matter wave interferometry
KW - Sagnac effect
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U2 - 10.1016/j.physleta.2009.12.029
DO - 10.1016/j.physleta.2009.12.029
M3 - Article
AN - SCOPUS:73749083027
SN - 0375-9601
VL - 374
SP - 923
EP - 928
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 7
ER -