東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Spin-flip resolution achieved with a...

Guise, Nicholas Damien Sun-Wo.

Linked to FindBook

Google Book

Amazon

博客來

Spin-flip resolution achieved with a one-proton self-excited oscillator.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Spin-flip resolution achieved with a one-proton self-excited oscillator./
Author:	Guise, Nicholas Damien Sun-Wo.
Description:	180 p.
Notes:	Source: Dissertation Abstracts International, Volume: 71-07, Section: B, page: 4299.
Contained By:	Dissertation Abstracts International71-07B.
Subject:	Physics, General. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3414751
ISBN:	9781124079509

Spin-flip resolution achieved with a one-proton self-excited oscillator.
Guise, Nicholas Damien Sun-Wo.

Spin-flip resolution achieved with a one-proton self-excited oscillator. - 180 p.

Source: Dissertation Abstracts International, Volume: 71-07, Section: B, page: 4299.

Thesis (Ph.D.)--Harvard University, 2010.

In a Penning trap with an extremely large magnetic gradient, the axial frequency of a one-proton self-excited oscillator is resolved at the level of the shift from a proton spin flip. This sensitivity opens a possible path towards detection of single-proton spin flips, novel measurements of the proton and antiproton g-factors, and a stringent test of CPT invariance by comparing proton and antiproton magnetic moments at precision likely to be a million times higher than achieved to date.

ISBN: 9781124079509Subjects--Topical Terms:

1018488
Physics, General.

Spin-flip resolution achieved with a one-proton self-excited oscillator.
LDR:02600nam 2200301 4500 001 1397093
005 20110705104726.5
008 130515s2010 ||||||||||||||||| ||eng d
020 $a 9781124079509
035 $a (UMI)AAI3414751
035 $a AAI3414751
040 $a UMI $c UMI
100 1 $a Guise, Nicholas Damien Sun-Wo. $3 1675906
245 1 0 $a Spin-flip resolution achieved with a one-proton self-excited oscillator.
300 $a 180 p.
500 $a Source: Dissertation Abstracts International, Volume: 71-07, Section: B, page: 4299.
500 $a Adviser: Gerald Gabrielse.
502 $a Thesis (Ph.D.)--Harvard University, 2010.
520 $a In a Penning trap with an extremely large magnetic gradient, the axial frequency of a one-proton self-excited oscillator is resolved at the level of the shift from a proton spin flip. This sensitivity opens a possible path towards detection of single-proton spin flips, novel measurements of the proton and antiproton g-factors, and a stringent test of CPT invariance by comparing proton and antiproton magnetic moments at precision likely to be a million times higher than achieved to date.
520 $a The central challenge of extending similar electron magnetic moment measurements to one proton is overcoming the substantially larger mass and weaker magnetic moment, which conspire to greatly reduce the frequency shift that signals a spin flip. Within a magnetic bottle gradient 50 times larger than used in the recent electron g-factor measurements, the proton spin-flip shift is still only 60 mHz out of a 553 kHz axial frequency. In such a large gradient, standard application of sideband cooling to reduce the magnetron radius changes the axial frequency by an amount greater than this spin-flip shift on average.
520 $a Proton axial frequency resolution at the 60 mHz level is enabled by feedback techniques realized previously only with one electron. Self-excitation produces a narrow feature with large signal-to-noise, ideal for rapid frequency measurements at high precision. Unwanted effects of the strong magnetic gradient are minimized by axial and radial cooling. Feedback cooling is used to reduce the proton axial motion below the temperature of a damping resistor. Axial-magnetron sideband cooling of the undamped radial motion is then demonstrated to reach a 14 mK theoretical limit.
590 $a School code: 0084.
650 4 $a Physics, General. $3 1018488
650 4 $a Physics, Atomic. $3 1029235
690 $a 0605
690 $a 0748
710 2 $a Harvard University. $3 528741
773 0 $t Dissertation Abstracts International $g 71-07B.
790 1 0 $a Gabrielse, Gerald, $e advisor
790 $a 0084
791 $a Ph.D.
792 $a 2010
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3414751