Comments on: Aspen Report: New Strides on the Road to a Quantum Computer http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/ Random samplings from a universe of ideas. Sun, 05 Jul 2009 20:41:04 +0000 http://wordpress.org/?v=2.3.1 By: So Why Come To Aspen? | Cosmic Variance http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1191 So Why Come To Aspen? | Cosmic Variance Mon, 08 Aug 2005 00:31:02 +0000 http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1191 [...] I come for the wonderful physics that gets done here at the Aspen Center for Physics (some of which I’ve already reported on in a few recent posts) and the fact that I’m welcome to come and contribute. I come here for the music that I’ve already told you about. I also come here for things that a lot of other people come here for: - Let me just shut up and show you what I saw on the hike today: [...] […] I come for the wonderful physics that gets done here at the Aspen Center for Physics (some of which I’ve already reported on in a few recent posts) and the fact that I’m welcome to come and contribute. I come here for the music that I’ve already told you about. I also come here for things that a lot of other people come here for: - Let me just shut up and show you what I saw on the hike today: […]

]]> By: Clifford http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1190 Clifford Fri, 05 Aug 2005 22:32:37 +0000 http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1190 It is only the fractional quantum hall effect that has a chance of showing the neccesary topological degrees of freedom needed in this context, as far as is known, I believe. Were someone to demonstrate a topological phase in the Hall context at room temperature, that would be rather good. The search for topological phases, as I understand it, could well yield surprises in several places, though. -cvj It is only the fractional quantum hall effect that has a chance of showing the neccesary topological degrees of freedom needed in this context, as far as is known, I believe. Were someone to demonstrate a topological phase in the Hall context at room temperature, that would be rather good. The search for topological phases, as I understand it, could well yield surprises in several places, though. -cvj

]]> By: Torbjorn Larsson http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1189 Torbjorn Larsson Fri, 05 Aug 2005 22:27:21 +0000 http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1189 The classic Hall effect shows already at room temperatures (230-410 K) and small magnetic fields (15 mT) in semiconductors, of course - just ask the engineers down the hall: http://www.micronas.com/products/overview/sensors/index.php#apps. The classic Hall effect shows already at room temperatures (230-410 K) and small magnetic fields (15 mT) in semiconductors, of course - just ask the engineers down the hall: http://www.micronas.com/products/overview/sensors/index.php#apps.

]]> By: Sean http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1188 Sean Fri, 05 Aug 2005 16:26:37 +0000 http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1188 By the way, you shouldn't confuse "number of comments" for "interest," for obvious reasons. I'd like to hear more about supercosmology! By the way, you shouldn’t confuse “number of comments” for “interest,” for obvious reasons. I’d like to hear more about supercosmology!

]]> By: Clifford http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1187 Clifford Fri, 05 Aug 2005 15:28:38 +0000 http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1187 Thanks Urs! -cvj Thanks Urs! -cvj

]]> By: Urs Schreiber http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1186 Urs Schreiber Fri, 05 Aug 2005 08:37:43 +0000 http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1186 I had recently heard about a related but somewhat different idea about using topological field theory in quantum computing. This idea by Friedman, Rasetti and several others is not about error correction, but about complexity classes. A report and some discussion of this can be found <a href="http://golem.ph.utexas.edu/string/archives/000534.html" rel="nofollow">here</a> at the <a href="http://golem.ph.utexas.edu/string/" rel="nofollow">Coffee Table</a>. I had recently heard about a related but somewhat different idea about using topological field theory in quantum computing. This idea by Friedman, Rasetti and several others is not about error correction, but about complexity classes. A report and some discussion of this can be found here at the Coffee Table.

]]> By: Clifford http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1185 Clifford Fri, 05 Aug 2005 04:03:27 +0000 http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1185 Thanks Moshe! See you at the talks tomorrow! -cvj Thanks Moshe! See you at the talks tomorrow! -cvj

]]> By: Moshe Rozali http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1184 Moshe Rozali Fri, 05 Aug 2005 03:59:04 +0000 http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1184 Ok, working a bit harder, here is a link that works on IE only (not sure why) http://streamer.perimeterinstitute.ca:81/MediasiteLive30/LiveViewer/FrontEnd/Front.aspx?cid=a9b1d20a-efa7-485f-8d5d-3b62fb7d3e4c also, from his webpage, a talk he gave at Santa-Barbara which looks identical at first glance. http://online.kitp.ucsb.edu/online/exotic_c04/preskill/ which will probably work in other browsers as well. best, Moshe Ok, working a bit harder, here is a link that works on IE only (not sure why)

http://streamer.perimeterinstitute.ca:81/MediasiteLive30/LiveViewer/FrontEnd/Front.aspx?cid=a9b1d20a-efa7-485f-8d5d-3b62fb7d3e4c

also, from his webpage, a talk he gave at Santa-Barbara which looks identical at first glance.

http://online.kitp.ucsb.edu/online/exotic_c04/preskill/

which will probably work in other browsers as well.

best,

Moshe

]]> By: Moshe Rozali http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1183 Moshe Rozali Fri, 05 Aug 2005 03:16:39 +0000 http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1183 I could not go to today's talk, but there was a really wonderful colloquium on the subject by John Preskill at the perimeter (during our summer school), it is recorded (try starting the navigation at http://www.perimeterinstitute.ca/activities/scientific/seminarseries/alltalks.cfm). If I remember correctly he mentioned he has lecture notes on the subject on his website, but I never got to check. best, Moshe I could not go to today’s talk, but there was a really wonderful colloquium on the subject by John Preskill at the perimeter (during our summer school), it is recorded (try starting the navigation at http://www.perimeterinstitute.ca/activities/scientific/seminarseries/alltalks.cfm).

If I remember correctly he mentioned he has lecture notes on the subject on his website, but I never got to check.

best,

Moshe

]]> By: Clifford http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1182 Clifford Fri, 05 Aug 2005 03:00:13 +0000 http://blogs.discovermagazine.com/cosmicvariance/2005/08/04/aspen-report-new-strides-on-the-road-to-a-quantum-computer/#comment-1182 Aaron: According to "Mission Impossible", the NSA already has them, if I recall a line from Ving Rhames' character correctly. Mark: Thanks. Good way of working up an appetite. Really hungry now! -cvj Aaron: According to “Mission Impossible”, the NSA already has them, if I recall a line from Ving Rhames’ character correctly.

Mark: Thanks. Good way of working up an appetite. Really hungry now!

-cvj

]]>