ITAMP Lunch Seminar

Speaker: Yehuda B. Band (Ben-Gurion University)

Date: Monday, Jan 29th

Time: 12:00-1:00 pm

Includes Pizza.

Title: Dynamics of a Magnetic Needle Magnetometer: Sensitivity to Landau-Lifshitz-Gilbert Damping and External Noise Decoherence

Abstract: We analyze the dynamics of a single-domain magnetic needle, which can be used as a high precision magnetometer.  We determine the uncertainty of the magnetometer due to Gilbert dissipation and the associated internal magnetic field fluctuations.  We then discuss the effect of external magnetic noise. We also consider needle dynamics in an inhomogeneous magnetic field (e.g., a Ioffe-Pritchard trap) and discuss magnetic levitation and stability.

Location:  B-106 @ Center for Astrophysics (60 Garden Street)

Directions: After entering the lobby of the CfA, turn right to enter the hallway of the B building. In the hallway, turn right again, B-106 will be at the end of the hallway on the left side.