NDLI: Using Precision Oscillators and Interferometers to Test Fundamental Physics

Content Provider	IEEE Xplore Digital Library
Author	Tobar, M.E. Stanwix, P.L. Fowler, A.C. Ivanov, E.N. Hartnett, J.G. Locke, C.R. Wolf, P.
Copyright Year	2006
Description	Author affiliation: Sch. of Phys., Western Australia Univ., Crawley, WA (Tobar, M.E.; Stanwix, P.L.; Fowler, A.C.; Ivanov, E.N.; Hartnett, J.G.; Locke, C.R.)
Abstract	The authors present current work at the University of Western Australia to test fundamental physics using precision phase and frequency measurements. The authors describe two experiments under development. Firstly, they describe a continuously rotating cryogenic microwave oscillator constructed to test local Lorentz invariance (LLI). Initial results improve limits set by previous non-rotating experiments by about an order of magnitude with only 3 months of data. Now, with over a year of data, they have reduced the noise floor by a factor of two. Secondly, they describe the development of a new, magnetically asymmetric, microwave interferometer with thermal noise limited readout, which will allow a sensitivity to the scalar and odd-parity coefficients for Lorentz violation in the photon sector of the standard model extension of parts in $10^{8}$ and $10^{12}$ respectively
Starting Page	681
Ending Page	684
File Size	340818
Page Count	4
File Format	PDF
ISBN	1424400740
DOI	10.1109/FREQ.2006.275469
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-06-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interferometers Testing Physics Microwave oscillators Magnetic noise Frequency measurement Cryogenics Local oscillators Lorentz covariance Noise reduction
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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