IBM's 2 new Quantum Computers

2023-12-04 Thread John Clark
Today IBM unveiled 2 new quantum computers, one called "Condor" is the largest the company has ever made with 1121 Qubits, up from their 433 Qubit machine that came out last year. The other machine called "Heron" only has 133 Qubits but has an error rate that is 5 ti

Re: Quantum computers: what are they good for?

2023-05-27 Thread John Clark
arily faster than the fastest of all possible classical algorithms.* Yes nobody has proved it, nevertheless nearly every mathematician thinks it's true and quantum computers can do things that conventional computers can't. My intuition tells me the same thing, now that we know for sure that w

Re: Quantum computers: what are they good for?

2023-05-25 Thread Brent Meeker
tions,That’s because of the relatively low resource requirements. This would be possible using quantum computers with a relatively small number of qubits” / Quantum computers: what are they good for? <https://www.nature.com/articles/d41586-023-01692-9?utm_source=Nature+Briefing_campaign=d1

Quantum computers: what are they good for?

2023-05-25 Thread John Clark
ource requirements. This would be possible using quantum computers with a relatively small number of qubits” * Quantum computers: what are they good for? <https://www.nature.com/articles/d41586-023-01692-9?utm_source=Nature+Briefing_campaign=d128e37f03-briefing-dy-20230525_medium=email_term=0_c9

Re: Physicists create virtual nonabelions for fault-tolerant quantum computers Inbox

2023-05-15 Thread spudboy100 via Everything List
What we need are not the algorithms, but the ice-cold machinery, coupled with AI to make the quantum leap technologically. Quantum computing is said to kick large errors along with faster processing.  Breakthrough in quantum error correction could lead to large-scale quantum computers https

Re: Physicists create virtual nonabelions for fault-tolerant quantum computers Inbox

2023-05-15 Thread John Clark
th N elements in which the time required to solve increases as N gets larger as X^N, not N^X). The P=NP question is perhaps the greatest unsolved problem in all of mathematics; if despite everybody's expectations it turns out that P really is equal to NP and if the algorithm could be found then it'

Re: Physicists create virtual nonabelions for fault-tolerant quantum computers Inbox

2023-05-14 Thread Brent Meeker
On 5/14/2023 4:41 AM, John Clark wrote: On Sat, May 13, 2023 at 8:12 PM Brent Meeker wrote: /> It won't be a big deal because, so far, quantum computers have only a very small domain where they are superior. And even if they were a million times faster across the board, i

Re: Physicists create virtual nonabelions for fault-tolerant quantum computers Inbox

2023-05-13 Thread Lawrence Crowell
al Nature that that went online yesterday: Physicists create virtual nonabelions for fault-tolerant quantum computers <https://www.nature.com/articles/d41586-023-01574-0?utm_source=Nature+Briefing_campaign=c182f988e0-briefing-dy-20230510_medium=email_term=0_c9dfd39373-c182f988e0-44221073&

Re: Physicists create virtual nonabelions for fault-tolerant quantum computers Inbox

2023-05-13 Thread John Clark
gt; As if all the news about GPT-4 were not enough, this is an article from >> the journal Nature that that went online yesterday: >> >> Physicists create virtual nonabelions for fault-tolerant quantum computers >> <https://www.nature.com/articles/d41586-023-01574-0?utm_sour

Re: Physicists create virtual nonabelions for fault-tolerant quantum computers Inbox

2023-05-13 Thread Lawrence Crowell
all the news about GPT-4 were not enough, this is an article from > the journal Nature that that went online yesterday: > > Physicists create virtual nonabelions for fault-tolerant quantum computers > <https://www.nature.com/articles/d41586-023-01574-0?utm_source=Nature+Briefing_c

Physicists create virtual nonabelions for fault-tolerant quantum computers Inbox

2023-05-10 Thread John Clark
As if all the news about GPT-4 were not enough, this is an article from the journal Nature that that went online yesterday: Physicists create virtual nonabelions for fault-tolerant quantum computers <https://www.nature.com/articles/d41586-023-01574-0?utm_source=Nature+Briefing_campaign=c182f98

Re: Quantum Computers

2021-10-11 Thread John Clark
Perhaps this explains what has occurred better than I have: Scientists are one step closer to error-correcting quantum computers <https://www.sciencenews.org/article/quantum-computer-error-correction-multiple-qubits-detect-mistakes> John K ClarkSee what's on my new list at Extropolis

Re: Quantum Computers

2021-10-07 Thread Lawrence Crowell
:58:50 AM UTC-5 johnk...@gmail.com wrote: > The difficulty in maintaining quantum coherence is the only reason we > don't have practical quantum computers today, but Monday's issue of the > journal Nature reported on a major advance in solving that problem. For > the first time it has

Re: Quantum Computers

2021-10-07 Thread spudboy100 via Everything List
A hybrid computing future is most likely. -Original Message- From: 'Brent Meeker' via Everything List To: everything-list@googlegroups.com Sent: Wed, Oct 6, 2021 6:10 pm Subject: Re: Quantum Computers On 10/6/2021 4:58 AM, John Clark wrote: The difficulty in maintaining quantum

Re: Quantum Computers

2021-10-07 Thread John Clark
le but it would sure be hard as hell, and I doubt it would run perfectly the first time it was actually tried out on a real computer. > ..*.and even there "faster" means in the limit of large problem size, not > necessarily in realistic problem sizes. * > All the appli

Re: Quantum Computers

2021-10-06 Thread spudboy100 via Everything List
versa?" -Original Message- From: John Clark To: 'Brent Meeker' via Everything List Sent: Wed, Oct 6, 2021 7:58 am Subject: Quantum Computers The difficulty in maintaining quantum coherence is the only reason we don't have practical quantum computers today, but Monday's issue of the journ

Re: Quantum Computers

2021-10-06 Thread 'Brent Meeker' via Everything List
On 10/6/2021 4:58 AM, John Clark wrote: The difficulty in maintaining quantum coherence is the only reason we don't have practical quantum computers today, Well  there is also the fact that there are only about two dozen problems for which there is a known quantum algorithm faster than

Quantum Computers

2021-10-06 Thread John Clark
The difficulty in maintaining quantum coherence is the only reason we don't have practical quantum computers today, but Monday's issue of the journal Nature reported on a major advance in solving that problem. For the first time it has been proven that a quantum error correcting code called

Re: Quantum Computers

2020-10-02 Thread Lawrence Crowell
to measure the energy of a Qubit, and > that is the most fundamental thing quantum computers do. Normally this is > done by measuring the voltage induced by the Qubit, but this requires a lot > of large amplification circuitry which makes scaling up to more Qubits > very difficult, and the circuitry pro

Quantum Computers

2020-10-01 Thread John Clark
tps://www.nature.com/articles/s41586-020-2753-3> This could be very important to anyone who wants to make a quantum computer because you could use it to measure the energy of a Qubit, and that is the most fundamental thing quantum computers do. Normally this is done by measuring the voltage i

Re: Quantum Computers

2020-04-21 Thread spudboy100 via Everything List
11:40 am Subject: Re: Quantum Computers On 20 Apr 2020, at 03:09, spudboy100 via Everything List wrote: Now all is has to do is work far better than digital computing.  Quantum computing is still digital computing.  A Quantum Computer does not violate the Church-Turing thesis, and it

Re: Quantum Computers

2020-04-21 Thread Bruno Marchal
n cognitive science, as any piece of matter is “made of” (“emerges on”) infinitely many computations. In my opinion, quantum computers will exist, but that might take a long time. I agree with Clark that eventually that will be a machine using quantum topological qubits, and t

Re: Quantum Computers

2020-04-19 Thread spudboy100 via Everything List
Now all is has to do is work far better than digital computing.  -Original Message- From: John Clark To: everything-list@googlegroups.com Sent: Thu, Apr 16, 2020 4:59 pm Subject: Quantum Computers In today's issue of the journal Nature there is a article about a Silicon based Quantum

Re: Quantum Computers

2020-04-17 Thread Philip Thrift
pretty cold > but previous Silicon based Quantum Computers, the type corporate investors > like best, needed 0.01 degrees Kelvin. Compared with that 1.25 is > blistering hot. > > Universal quantum logic in hot silicon qubits > <https://www.nature.com/articles/s41586-020-

Quantum Computers

2020-04-16 Thread John Clark
In today's issue of the journal Nature there is a article about a Silicon based Quantum Computer that operates at temperatures as high as 1.25 degrees Kelvin with an error rate of only 0.7%. That may seem pretty cold but previous Silicon based Quantum Computers, the type corporate investors like

Re: Quantum Computers and Anyons

2020-04-13 Thread RISHABH CHAKRABARTY
on's loop around each other their quantum state is altered and so that brading can be used to encode information. Such brading would be far less susceptible to quantum decoherence than other ways of encoding information, and decoherence is the only reason we don't have practical and scalable Quantum

Re: Quantum Computers and Anyons

2020-04-12 Thread Philip Thrift
On Sunday, April 12, 2020 at 2:06:00 PM UTC-5, Lawrence Crowell wrote: > > >> Nonabelian anyons have a braid group structure. > > LC > > >> Anyons in topological QM: Topological Quantum: Lecture Notes http://www-thphys.physics.ox.ac.uk/people/SteveSimon/topological2016/TopoBook.pdf

Re: Quantum Computers and Anyons

2020-04-12 Thread Lawrence Crowell
ecoherence is the only reason we > don't have practical and scalable Quantum Computers right now. > > > > I agree. I guess you mean braiding, like the space time description of two > particles going around each other, or around a third one, leading to a > braid (in

Re: Quantum Computers and Anyons

2020-04-11 Thread Bruno Marchal
other their quantum state > is altered and so that brading can be used to encode information. Such > brading would be far less susceptible to quantum decoherence than other ways > of encoding information, and decoherence is the only reason we don't have > practical and scalable Quantum Comput

Quantum Computers and Anyons

2020-04-11 Thread John Clark
nformation. Such brading would be far less susceptible to quantum decoherence than other ways of encoding information, and decoherence is the only reason we don't have practical and scalable Quantum Computers right now. Fractional statistics in anyon collisions <https://science.sciencemag.org/content

Re: Quantum Computers

2020-01-17 Thread Philip Thrift
On Friday, January 17, 2020 at 1:11:41 AM UTC-6, Alan Grayson wrote: > > > > On Friday, January 17, 2020 at 12:04:48 AM UTC-7, Alan Grayson wrote: >> >> >> >> On Wednesday, January 15, 2020 at 2:11:45 PM UTC-7, John Clark wrote: >>> >>>

Re: Quantum Computers

2020-01-16 Thread Alan Grayson
On Friday, January 17, 2020 at 12:04:48 AM UTC-7, Alan Grayson wrote: > > > > On Wednesday, January 15, 2020 at 2:11:45 PM UTC-7, John Clark wrote: >> >> The Hype Over Quantum Computers, Explained >> <https://www.youtube.com/watch?v=u1XXjWr5frE> >> &g

Re: Quantum Computers

2020-01-16 Thread Alan Grayson
On Wednesday, January 15, 2020 at 2:11:45 PM UTC-7, John Clark wrote: > > The Hype Over Quantum Computers, Explained > <https://www.youtube.com/watch?v=u1XXjWr5frE> > > John K Clark > The key thing I don't understand about quantum computers is this; if you have a q

Quantum Computers

2020-01-15 Thread John Clark
The Hype Over Quantum Computers, Explained <https://www.youtube.com/watch?v=u1XXjWr5frE> John K Clark -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from i

Re: Fwd: "Finally, A Problem That Only Quantum Computers Will Ev

2018-06-22 Thread Lawrence Crowell
nd the reach of the combined > set PH = {P, NP} > > Chris > > On Thu, Jun 21, 2018 at 3:52 PM, Brent Meeker > > wrote: > > > > Forwarded Message > > > > https://www.quantamagazine.org/finally-a-problem-that-only-quantum-co

Re: Fwd: "Finally, A Problem That Only Quantum Computers Will Ev

2018-06-22 Thread 'Chris de Morsella' via Everything List
True, but as you mentioned, and we are in agreement this is a fundamentally new class of problem. Whether it turns out to be of practical utility or remains as an interesting oddball is yet to be determined.Chris Sent from Yahoo Mail on Android On Fri, Jun 22, 2018 at 1:42 PM, John Clark

Re: Fwd: "Finally, A Problem That Only Quantum Computers Will Ev

2018-06-22 Thread John Clark
On Thu, Jun 21, 2018 at 9:20 PM, 'Chris de Morsella' via Everything List < everything-list@googlegroups.com> wrote: ​> ​ > The birth of a fundamentally distinct new class of problems. > BQP has carved out a realm of its own... beyond the reach of the combined > set PH = {P, NP} > This new

Re: Fwd: "Finally, A Problem That Only Quantum Computers Will Ev

2018-06-21 Thread 'Chris de Morsella' via Everything List
://www.quantamagazine.org/finally-a-problem-that-only-quantum-computers-will-ever-be-able-to-solve-20180621/ ref: https://eccc.weizmann.ac.il/report/2018/107/ ... Here’s the problem. Imagine you have two random number generators, each producing a sequence of digits. The question for your computer

Fwd: "Finally, A Problem That Only Quantum Computers Will Ever Be Able to Solve"

2018-06-21 Thread Brent Meeker
Forwarded Message https://www.quantamagazine.org/finally-a-problem-that-only-quantum-computers-will-ever-be-able-to-solve-20180621/ ref: https://eccc.weizmann.ac.il/report/2018/107/ ... /Here’s the problem. Imagine you have two random number generators, each producing

Re: Quantum Computers

2016-02-07 Thread Russell Standish
On Sun, Feb 07, 2016 at 12:33:24PM -0500, John Clark wrote: > > Quantum Computer expert Scott AAronson says things would be more > interesting if it turns out that quantum computers are impossible because > then we'd learn something new, everything we know about quantum mechanics >

Re: Quantum Computers

2016-02-07 Thread spudboy100 via Everything List
I am halted (halting problem) on the nanotechnology is as big a revolution statement. We have no K. Eric Drexler revolution, so far. What we do have, emerging out of no where is 3D manufacturing. If you can actually make quantum computers, or hybrid quantum computing, I say, faster please. I'd

Re: Quantum Computers

2016-02-07 Thread John Clark
o Drexler style revolution either, *so far*. A Drexler revolution is just a matter of time because we have an existence proof (life) that there are no laws of physics that forbid it. The situation is different with Quantum Computers, although no known law of physics forbids large Quantum Computers we ha

Re: Quantum Computers

2016-02-03 Thread Brent Meeker
On 2/3/2016 2:34 PM, John Clark wrote: A recent paper in Nature Communications gives more evidence that Quantum Computers might produce as big a revolution as Nanotechnology, Seth Lloyd, Silvano Garnerone and Paolo Zanardi have found a Quantum algorithms for the topological analysis of data

Re: Quantum Computers

2016-02-03 Thread John Clark
You're right I'm wrong, the Quantum factoring algorithm was found by Peter Shor. John K Clark On Wed, Feb 3, 2016 at 6:20 PM, Brent Meeker <meeke...@verizon.net> wrote: > > > On 2/3/2016 2:34 PM, John Clark wrote: > > A recent paper in Nature Communications gives more ev

Quantum Computers

2016-02-03 Thread John Clark
A recent paper in Nature Communications gives more evidence that Quantum Computers might produce as big a revolution as Nanotechnology, Seth Lloyd, Silvano Garnerone and Paolo Zanardi have found a Quantum algorithms for the topological analysis of data: http://www.nature.com/ncomms/2016/160125

Quantum Computers

2015-03-05 Thread John Clark
There is a important paper in today's journal Nature on error correction that would be needed to make Quantum Computers practical. Although they still can't protect individual Qubits they could protect the entanglement of 3 or more particles (the Greenberger–Horne–Zeilinger state) and they could

Re: Re: multiverses and quantum computers

2013-02-05 Thread Roger Clough
Time: 2013-02-04, 11:43:07 Subject: Re: multiverses and quantum computers On 01 Feb 2013, at 19:26, Roger Clough wrote: Hi Bruno, I can't see that superposition of states is any more magical in one universe than, say, multiple roots to an equation, or imaginary numbers. What matters

Re: multiverses and quantum computers

2013-02-05 Thread Bruno Marchal
- From: Telmo Menezes Receiver: everything-list Time: 2013-01-31, 08:13:30 Subject: Re: Re: About the Infinite Repetition of Histories in Space Hi Roger, In the one universe model, where does the extra computational power of quantum computers come from? On Thu, Jan 31, 2013 at 2:09 PM

Re: multiverses and quantum computers

2013-02-05 Thread Bruno Marchal
) between Plato, computer science and physics. Bruno - Receiving the following content - From: Bruno Marchal Receiver: everything-list Time: 2013-02-04, 11:43:07 Subject: Re: multiverses and quantum computers On 01 Feb 2013, at 19:26, Roger Clough wrote: Hi Bruno, I can't see

Re: multiverses and quantum computers

2013-02-05 Thread Telmo Menezes
:* 2013-01-31, 08:13:30 *Subject:* Re: Re: About the Infinite Repetition of Histories in Space Hi Roger, In the one universe model, where does the extra computational power of quantum computers come from? On Thu, Jan 31, 2013 at 2:09 PM, Roger Clough rclo...@verizon.netwrote: Hi Telmo

Re: multiverses and quantum computers

2013-02-04 Thread Bruno Marchal
reason. And there is an abyss of complexity between those two kind of reasons. Bruno - Receiving the following content - From: Telmo Menezes Receiver: everything-list Time: 2013-02-01, 03:46:32 Subject: Re: multiverses and quantum computers Hi Bruno, On Thu, Jan 31, 2013 at 4

Re: multiverses and quantum computers

2013-02-04 Thread Bruno Marchal
in Space Hi Roger, In the one universe model, where does the extra computational power of quantum computers come from? On Thu, Jan 31, 2013 at 2:09 PM, Roger Clough rclo...@verizon.net wrote: Hi Telmo Menezes   IMHO more than one universe is unjustified.     - Receiving the following

Re: multiverses and quantum computers

2013-02-04 Thread Telmo Menezes
:* Telmo Menezes te...@telmomenezes.com *Receiver:* everything-list everything-list@googlegroups.com *Time:* 2013-01-31, 08:13:30 *Subject:* Re: Re: About the Infinite Repetition of Histories in Space Hi Roger, In the one universe model, where does the extra computational power of quantum

Re: multiverses and quantum computers

2013-02-02 Thread Telmo Menezes
in Space Hi Roger, In the one universe model, where does the extra computational power of quantum computers come from? On Thu, Jan 31, 2013 at 2:09 PM, Roger Clough rclo...@verizon.netwrote: Hi Telmo Menezes IMHO more than one universe is unjustified. - Receiving the following

Re: multiverses and quantum computers

2013-02-02 Thread Telmo Menezes
@googlegroups.com *Time:* 2013-01-31, 08:13:30 *Subject:* Re: Re: About the Infinite Repetition of Histories in Space Hi Roger, In the one universe model, where does the extra computational power of quantum computers come from? On Thu, Jan 31, 2013 at 2:09 PM, Roger Clough rclo...@verizon.netwrote

Re: multiverses and quantum computers

2013-02-02 Thread Craig Weinberg
computational power of quantum computers come from? On Thu, Jan 31, 2013 at 2:09 PM, Roger Clough rcl...@verizon.netjavascript: wrote: Hi Telmo Menezes IMHO more than one universe is unjustified. - Receiving the following content - *From:* Telmo Menezes javascript

Re: multiverses and quantum computers

2013-02-02 Thread meekerdb
On 2/2/2013 2:43 AM, Telmo Menezes wrote: On Sat, Feb 2, 2013 at 8:39 AM, meekerdb meeke...@verizon.net mailto:meeke...@verizon.net wrote: On 2/1/2013 12:46 AM, Telmo Menezes wrote: Hi Bruno, On Thu, Jan 31, 2013 at 4:15 PM, Bruno Marchal marc...@ulb.ac.be

Re: multiverses and quantum computers

2013-02-01 Thread Telmo Menezes
:* 2013-01-31, 08:13:30 *Subject:* Re: Re: About the Infinite Repetition of Histories in Space Hi Roger, In the one universe model, where does the extra computational power of quantum computers come from? On Thu, Jan 31, 2013 at 2:09 PM, Roger Clough rclo...@verizon.net wrote: Hi Telmo

Re: multiverses and quantum computers

2013-02-01 Thread Bruno Marchal
the Infinite Repetition of Histories in Space Hi Roger, In the one universe model, where does the extra computational power of quantum computers come from? On Thu, Jan 31, 2013 at 2:09 PM, Roger Clough rclo...@verizon.net wrote: Hi Telmo Menezes   IMHO more than one universe is unjustified

Re: Re: multiverses and quantum computers

2013-02-01 Thread Roger Clough
compounded for. - Receiving the following content - From: Bruno Marchal Receiver: everything-list Time: 2013-02-01, 12:11:55 Subject: Re: multiverses and quantum computers On 01 Feb 2013, at 09:46, Telmo Menezes wrote: Hi Bruno, On Thu, Jan 31, 2013 at 4:15 PM, Bruno Marchal

Re: Re: multiverses and quantum computers

2013-02-01 Thread Roger Clough
Receiver: everything-list Time: 2013-02-01, 03:46:32 Subject: Re: multiverses and quantum computers Hi Bruno, On Thu, Jan 31, 2013 at 4:15 PM, Bruno Marchal marc...@ulb.ac.be wrote: On 31 Jan 2013, at 15:15, Roger Clough wrote: Hi Telmo Menezes Perhaps you're right, but to my limited

Re: multiverses and quantum computers

2013-02-01 Thread meekerdb
Repetition of Histories in Space Hi Roger, In the one universe model, where does the extra computational power of quantum computers come from? On Thu, Jan 31, 2013 at 2:09 PM, Roger Clough rclo...@verizon.net mailto:rclo...@verizon.net wrote

multiverses and quantum computers

2013-01-31 Thread Roger Clough
:13:30 Subject: Re: Re: About the Infinite Repetition of Histories in Space Hi Roger, In the one universe model, where does the extra computational power of quantum computers come from? On Thu, Jan 31, 2013 at 2:09 PM, Roger Clough rclo...@verizon.net wrote: Hi Telmo Menezes IMHO more than

Re: multiverses and quantum computers

2013-01-31 Thread Bruno Marchal
, 08:13:30 Subject: Re: Re: About the Infinite Repetition of Histories in Space Hi Roger, In the one universe model, where does the extra computational power of quantum computers come from? On Thu, Jan 31, 2013 at 2:09 PM, Roger Clough rclo...@verizon.net wrote: Hi Telmo Menezes   IMHO more