What is the future of superconducting circuits

[supradeep narayana]

Hello,
I have recently read some articles on superconducting circuits, and I
would like a n opinion on if the area of superconducting circuits is a
good and growing for doing research. particularly at stony brook,
where researchers have produced a lot of work.
Does this area require lot of knowledge on superconductivity and
physics.
you suggestions are welcome.
thanking you
supradeep

 

[john jakson]

supradeep@gmail.com (supradeep narayana) wrote in message news:<3e4ee61a.0408051028.1f0d694d@posting.google.com>...

Hello,
I have recently read some articles on superconducting circuits, and I
would like a n opinion on if the area of superconducting circuits is a
good and growing for doing research. particularly at stony brook,
where researchers have produced a lot of work.
Does this area require lot of knowledge on superconductivity and
physics.
you suggestions are welcome.
thanking you
supradeep

For the purposes of the digital engineer, superconducting chips are
super dead, IBM cancelled that no-producing technology 10-15yrs ago.

But for power engineering and magnetics theres still some future I
guess.

regards

johnjakson_uas_com

 

[Digvijay Raghavan]

Hi,
I am not even a novice in this area but I do know that the
technology that IBM was employing was trying to mimic logic levels
similar to semiconductor based logic. They had a lot of problems doing
that and the final clock frequencies that they could achieve was
rather low for the investment. It was then that two researchers from
MSU, Moscow (Dr Likharev and Dr Semenov) came up with the idea of RSFQ
logic wherein logic is defined in terms of the presence or absence of
a quantum flux in the presence of a clock (which again is quantum flux
pulse). I hear that this approach has infact generated a lot of
quantifiable results and recently NEC, Japan even demonstrated a
partially functional RSFQ Processor. Here, in the U.S, Hypres Inc in
collaboration with a Prof from Stony Brook has generated a lot of
results and are even currently funded by NSF or DARPA for a RSFQ ADC
to be employed in the very first Software Defined Radio. Seeing all
this, I believe that "superconducting chips" are far from dead. Maybe
for certain applications, they might prove to be the only solution,
only time can tell. I have no idea though about what it takes to be a
researcher in this area nor can I comment on the future that it
entails.

Regards,
Digvijay.

johnjakson@yahoo.com (john jakson) wrote in message news:<adb3971c.0408051645.7f50ee61@posting.google.com>...

supradeep@gmail.com (supradeep narayana) wrote in message news:<3e4ee61a.0408051028.1f0d694d@posting.google.com>...
Hello,
I have recently read some articles on superconducting circuits, and I
would like a n opinion on if the area of superconducting circuits is a
good and growing for doing research. particularly at stony brook,
where researchers have produced a lot of work.
Does this area require lot of knowledge on superconductivity and
physics.
you suggestions are welcome.
thanking you
supradeep

For the purposes of the digital engineer, superconducting chips are
super dead, IBM cancelled that no-producing technology 10-15yrs ago.

But for power engineering and magnetics theres still some future I
guess.

regards

johnjakson_uas_com

 

[Steve Maudsley]

"Digvijay Raghavan" <digvijaymr@yahoo.com> wrote in message
news:7e63f9c5.0408060326.4cc87edb@posting.google.com...

Hi,
I am not even a novice in this area but I do know that the
technology that IBM was employing was trying to mimic logic levels
similar to semiconductor based logic. They had a lot of problems doing
that and the final clock frequencies that they could achieve was
rather low for the investment. It was then that two researchers from
MSU, Moscow (Dr Likharev and Dr Semenov) came up with the idea of RSFQ
logic wherein logic is defined in terms of the presence or absence of
a quantum flux in the presence of a clock (which again is quantum flux
pulse). I hear that this approach has infact generated a lot of
quantifiable results and recently NEC, Japan even demonstrated a
partially functional RSFQ Processor. Here, in the U.S, Hypres Inc in
collaboration with a Prof from Stony Brook has generated a lot of
results and are even currently funded by NSF or DARPA for a RSFQ ADC
to be employed in the very first Software Defined Radio. Seeing all
this, I believe that "superconducting chips" are far from dead. Maybe
for certain applications, they might prove to be the only solution,
only time can tell. I have no idea though about what it takes to be a
researcher in this area nor can I comment on the future that it
entails.

ISTR that some of the work on quantum computers is using super cooled
circuitry. Might be worth reading up on that.

Stephen