Lancaster EPrints

A spin laser? The persistent processing domain in superfluid He-3-B at ultralow temperatures.

Fisher, Shaun N. and Guénault, A.M. and Pickett, George R. and Skyba, P. (2003) A spin laser? The persistent processing domain in superfluid He-3-B at ultralow temperatures. Physica B: Condensed Matter, 329 (1). pp. 80-81. ISSN 0921-4526

Full text not available from this repository.

Abstract

We discuss various properties of the persistent precessing domain (PPD, formerly PIS) in superfluid He-3-B. These exotic NMR domains can only be excited at ultralow temperatures. At the lowest temperatures they freely precess for periods up to 2000 s. We identify various behaviors depending on the texture and magnetic field profile. We can create the domains with small generating pulses or excite them continuously but only with an excitation frequency higher than that of the domain precession. Remarkably, we can excite and sustain the precession by the application of white noise. Thus,. unusually, the coherent domain can extract energy from an incoherent energy source.

Item Type: Article
Journal or Publication Title: Physica B: Condensed Matter
Uncontrolled Keywords: superfluid He-3 ; NMR ; ultralow temperatures
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 23566
Deposited By: Dr Richard P. Haley
Deposited On: 03 Feb 2009 16:08
Refereed?: Yes
Published?: Published
Last Modified: 17 Jul 2013 10:23
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/23566

Actions (login required)

View Item