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LF: RE: Re: New "Quantum Radio" VLF receivers ?

from [hvanesce] [Permanent Link][Original]
To: <[email protected]>
Subject: LF: RE: Re: New "Quantum Radio" VLF receivers ?
From: <[email protected]>
Date: Sat, 6 Jan 2018 21:59:07 -0500
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Alan,

 

Agreed; I would venture that quantum magnetometers and SQUID-type devices would be great for any VLF communications applications in which the antenna aperture must be less than 1 millimeter, and in which cryocooling, vacuum-management and/or thermal-stabilization size/weight are not an issue. I didn’t find a NIST paper for the magnetometer, but I’m wondering if it will have considered that wires and loops at VLF-communications-friendly lengths/diameters (respectively), beat SQUIDs (for example) at their MRI-sized and SSM-sized apertures.

 

Jim AA5BW      

 

From: [email protected] [mailto:[email protected]] On Behalf Of Alan Melia
Sent: Saturday, January 6, 2018 8:30 PM
To: [email protected]
Subject: LF: Re: New "Quantum Radio" VLF receivers ?

 

The description is a bit 'odd' Luis :-))  it refers to magnetic radio which is a confusion of terms ....its sither magnetism which is what is needed to flip Rb atoms or radio and the interaction there is 6GHz or there abouts. yes you can detect varying fields with lots of quantum devices,squids are used in MRI scanners, Josephson junctions.These have been arounda long time and never been used for detecting radio.  I think one needs to go back to the original NIST paper to get some sense.

 

Alan

G3NYK

----- Original Message -----

Sent: Saturday, January 06, 2018 11:13 PM

Subject: LF: New "Quantum Radio" VLF receivers ?

 

Hi VLF

 

Have a look and if you (really) understand it, please elaborate ;-)

 

 

73 de Luis

EA5DOM

 

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