Re: [Qirg] multiplexing?

[Joseph D Touch <[e-mail]>]

Hi, all,

I'm curious at the phrase too.

Muxing is what happens to the path or link when it is shared by multiple entanglement-creation or teleportation operations, which is different from how individual qubits on a link are muxed either in time (TDM), space (parallel links), wavelength (FDM), or some other encoding that is distinct from how the quantum info is encoded (i.e., you can't mux by polarization and use it for quantum info at the same time).

I'd suggest discussing both levels of "path sharing"...

Joe

-- 
Dr. Joseph Touch
Principal Scientist
Information Systems and Cyber Division
The Aerospace Corporation
424-254-4357 cell
 

On 4/27/21, 1:41 AM, "Qirg on behalf of Rodney Van Meter" <[e-mail] on behalf of rdv=[e-mail]> wrote:

    Mmm, one problem is that it is used at many levels, and perhaps you and I are using it in different ways here.  I’m thinking of stat mux v. circuit switching, a very networky thing, but it’s also used to refer to frequency allocation in WDM and the quantum folks also use it to mean being able to connect multiple qubit memories to a single optical channel.

    Rodney Van Meter
    [e-mail]
    Professor, Faculty of Environment and Information Studies, Keio University, Japan

    > On Apr 27, 2021, at 17:35, Bruno Rijsman <[e-mail]> wrote:
    > 
    > I vote for updating the draft to mention multiplexing.
    > 
    > It is too important of a concept for achieving practically usable entanglement rates.
    > 
    > — Bruno
    > 
    >> On Apr 27, 2021, at 9:35 AM, Rodney Van Meter <rdv=[e-mail]> wrote:
    >> 
    >> Wojtek,
    >> 
    >> Just dinking around I noticed that we never use the word “multiplexing” in our I-D.
    >> https://datatracker.ietf.org/doc/draft-irtf-qirg-principles/
    >> We do refer to “resource management”.
    >> 
    >> QIRGers, what do y’all think?  Should we use muxing in some form in this to discuss the problem of managing access to resources along the path?
    >> 
    >> —Rod
    >> 
    >> P.S. Yes, we said in IETF a few weeks ago that this would be sent to IRSG by now, but we haven’t gotten it sent. I do think it’s ready.
    >> 
    >> Rodney Van Meter
    >> [e-mail]
    >> Professor, Faculty of Environment and Information Studies, Keio University, Japan
    >> 
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