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A test of CPT and Lorentz symmetry u...

Kornack, Thomas Whitmore.

A test of CPT and Lorentz symmetry using a potassium-helium-3 co-magnetometer.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	A test of CPT and Lorentz symmetry using a potassium-helium-3 co-magnetometer.
作者:	Kornack, Thomas Whitmore.
面頁冊數:	222 p.
附註:	Adviser: Michael Valeriovich Romalis.
附註:	Source: Dissertation Abstracts International, Volume: 66-08, Section: B, page: 4277.
Contained By:	Dissertation Abstracts International66-08B.
標題:	Physics, Atomic.
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3188628
ISBN:	9780542307010

A test of CPT and Lorentz symmetry using a potassium-helium-3 co-magnetometer.
Kornack, Thomas Whitmore.

A test of CPT and Lorentz symmetry using a potassium-helium-3 co-magnetometer. - 222 p.

Adviser: Michael Valeriovich Romalis.

Thesis (Ph.D.)--Princeton University, 2005.

A K-3He co-magnetometer has been developed for a test of Lorentz and CPT symmetry. Polarized K vapor forms a spin-exchange relaxation-free (SERF) magnetometer that has record sensitivity of about 1 fT/ Hz . The polarized 3He effectively suppresses sensitivity to the magnetic fields and gradients. Together, the K-3He co-magnetometer retains sensitivity to anomalous, CPT- and Lorentz-violating fields that couple to electron and nuclear spins differently than a normal magnetic field. Data over the course of 15 months provide upper limits on the coupling energy of a CPT-violating field to neutron spin, b&tilde;n < 1.4 x 10-31 GeV, to proton spin, b&tilde;p < 4.4 x 10-30 GeV, and to electron spin, b&tilde;e < 1.0 x 10-28 GeV. These limits are consistent with the existing limits of b&tilde;n < 1.1 x 10-31 GeV (Bear et al., 2002) and b&tilde; e < 3.0 x 10-29 GeV (Heckel et al., 2000). The proton sensitivity is better than the published limit of b&tilde;p < 1.8 x 10-27 GeV (Phillips et al., 2001). The long-term sensitivity of the co-magnetometer was significantly limited by sources of systematic noise.

ISBN: 9780542307010Subjects--Topical Terms:

227348
Physics, Atomic.

A test of CPT and Lorentz symmetry using a potassium-helium-3 co-magnetometer.
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245 1 2 $a A test of CPT and Lorentz symmetry using a potassium-helium-3 co-magnetometer.
300 $a 222 p.
500 $a Adviser: Michael Valeriovich Romalis.
500 $a Source: Dissertation Abstracts International, Volume: 66-08, Section: B, page: 4277.
502 $a Thesis (Ph.D.)--Princeton University, 2005.
520 # $a A K-3He co-magnetometer has been developed for a test of Lorentz and CPT symmetry. Polarized K vapor forms a spin-exchange relaxation-free (SERF) magnetometer that has record sensitivity of about 1 fT/ Hz . The polarized 3He effectively suppresses sensitivity to the magnetic fields and gradients. Together, the K-3He co-magnetometer retains sensitivity to anomalous, CPT- and Lorentz-violating fields that couple to electron and nuclear spins differently than a normal magnetic field. Data over the course of 15 months provide upper limits on the coupling energy of a CPT-violating field to neutron spin, b&tilde;n < 1.4 x 10-31 GeV, to proton spin, b&tilde;p < 4.4 x 10-30 GeV, and to electron spin, b&tilde;e < 1.0 x 10-28 GeV. These limits are consistent with the existing limits of b&tilde;n < 1.1 x 10-31 GeV (Bear et al., 2002) and b&tilde; e < 3.0 x 10-29 GeV (Heckel et al., 2000). The proton sensitivity is better than the published limit of b&tilde;p < 1.8 x 10-27 GeV (Phillips et al., 2001). The long-term sensitivity of the co-magnetometer was significantly limited by sources of systematic noise.
520 # $a The co-magnetometer also forms a sensitive gyroscope that inherits all the magnetic insensitivity features of the co-magnetometer and adds insensitivity to magnetic fields fast transients. The sensitivity of this gyroscope is competitive with existing compact gyroscope techniques.
520 # $a The co-magnetometer provides a robust platform for precision measurements primarily due to its inherent insensitivity to magnetic field drift and field gradients. Detailed analytic and numerical modeling of the coupled spin ensemble dynamics provides good agreement with steady state and transient response measurements. Elaborate procedures have been developed for running the system optimally and minimizing the magnetic fields and lightshifts in the system.
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791 $a Ph.D.
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