Quantum computing infeasibility due to quantum tomography?

Foundations of physics and/or philosophy of physics, and in particular, posts on unresolved or controversial issues

Re: Quantum computing infeasibility due to quantum tomograph

Postby minkwe » Fri Jun 16, 2017 4:20 am

Hmm?

https://arxiv.org/pdf/1706.04341.pdf

From the results presented in the foregoing sections, we draw the following
conclusions:
• For some systems of two and four qubits, qualitative agreement with quantum
theory was observed.
• Errors could not be identified by the user nor be corrected using quantum
error-correction, and could not be attributed to the specified gate errors.
• The data showed strong variations between calibrations.
• Sequences of identity operations provide simple, scalable algorithms to validate
the correct operation of the device [4].
• The current IBM-QE device does not meet the two elementary requirements
(see section 1) for a computing device.
• The IBM-QE allows a theoretician to perform real laboratory experiments.
minkwe
 
Posts: 982
Joined: Sat Feb 08, 2014 9:22 am

Re: Quantum computing infeasibility due to quantum tomograph

Postby Joy Christian » Thu Jul 06, 2017 11:04 pm

***
Quantum Computers Compete for "Supremacy": https://www.scientificamerican.com/arti ... supremacy/.

***
Joy Christian
Research Physicist
 
Posts: 1706
Joined: Wed Feb 05, 2014 3:49 am
Location: Oxford, United Kingdom

Re: Quantum computing infeasibility due to quantum tomograph

Postby Joy Christian » Sun Jul 16, 2017 2:01 am

***
Russian and US Scientists Team Up to Create World's Most Advanced Quantum Computer: https://sputniknews.com/amp/science/201 ... -computer/.

***
Joy Christian
Research Physicist
 
Posts: 1706
Joined: Wed Feb 05, 2014 3:49 am
Location: Oxford, United Kingdom

Re: Quantum computing infeasibility due to quantum tomograph

Postby Joy Christian » Wed Nov 01, 2017 7:57 am

***

The different forms of quantum computing skepticism: https://windowsontheory.org/.

***
Joy Christian
Research Physicist
 
Posts: 1706
Joined: Wed Feb 05, 2014 3:49 am
Location: Oxford, United Kingdom

Re: Quantum computing infeasibility due to quantum tomograph

Postby Joy Christian » Mon Nov 13, 2017 11:55 am

***

Race for quantum supremacy hits theoretical quagmire: http://www.nature.com/news/race-for-qua ... re-1.22993.

***
Joy Christian
Research Physicist
 
Posts: 1706
Joined: Wed Feb 05, 2014 3:49 am
Location: Oxford, United Kingdom

Re: Quantum computing infeasibility due to quantum tomograph

Postby Joy Christian » Tue Nov 14, 2017 10:02 pm

Joy Christian wrote:***

Race for quantum supremacy hits theoretical quagmire: http://www.nature.com/news/race-for-qua ... re-1.22993.

***

If you read this article carefully, you will notice that it is an attempt to preemptively downplay the idea of "quantum supremacy" before it gets discredited in Google's planned experiment to test it by the end to this year. Huge hype has been built up around the so-called "quantum computers" and their "supremacy" over the classical computers. Consequently, the proponents of quantum computers cannot afford to be accused of promulgating the "fake-news" of "quantum supremacy" if the planned experiment fails them. Hence this propaganda piece published in Nature just in time for the possible end-of-the-year apocalypse. :)

See also "The different forms of quantum computing skepticism": https://windowsontheory.org/2017/10/30/ ... ment-42742.

***
Joy Christian
Research Physicist
 
Posts: 1706
Joined: Wed Feb 05, 2014 3:49 am
Location: Oxford, United Kingdom

Re: Quantum computing infeasibility due to quantum tomograph

Postby Joy Christian » Wed Aug 01, 2018 1:19 am

***

Major Quantum Computing Advance Made Obsolete by Teenager: https://www.quantamagazine.org/teenager ... -20180731/

***
Joy Christian
Research Physicist
 
Posts: 1706
Joined: Wed Feb 05, 2014 3:49 am
Location: Oxford, United Kingdom

Re: Quantum computing infeasibility due to quantum tomograph

Postby minkwe » Thu Aug 02, 2018 2:06 pm

Just saw that too. Is there anything else keeping the "quantum supremacy" myth alive? Scott (you know who) admitted on his blog that he was disappointed by this result from his student.

BQP = BPP
minkwe
 
Posts: 982
Joined: Sat Feb 08, 2014 9:22 am

Re: Quantum computing infeasibility due to quantum tomograph

Postby Joy Christian » Mon Aug 13, 2018 10:07 am

minkwe wrote:Just saw that too. Is there anything else keeping the "quantum supremacy" myth alive? Scott (you know who) admitted on his blog that he was disappointed by this result from his student.

BQP = BPP

Scott (you know who) is either incredibly stupid or an outrageous fraud. :)

***
Joy Christian
Research Physicist
 
Posts: 1706
Joined: Wed Feb 05, 2014 3:49 am
Location: Oxford, United Kingdom

Previous

Return to Sci.Physics.Foundations

Who is online

Users browsing this forum: No registered users and 2 guests

CodeCogs - An Open Source Scientific Library