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Superfluidity in topologically nontrivial flat bands

Started bySam Wormley <swormley1@gmail.com>
First post2015-11-20 09:57 -0600
Last post2015-11-21 05:02 -0500
Articles 9 — 5 participants

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  Superfluidity in topologically nontrivial flat bands Sam Wormley <swormley1@gmail.com> - 2015-11-20 09:57 -0600
    Re: Superfluidity in topologically nontrivial flat bands dvus <dven1@adelphia.net> - 2015-11-20 15:20 -0500
      Re: Superfluidity in topologically nontrivial flat bands Wally W. <ww84wa@aim.com> - 2015-11-20 21:37 -0500
        Re: Superfluidity in topologically nontrivial flat bands Sam Wormley <swormley1@gmail.com> - 2015-11-20 21:08 -0600
          Re: Superfluidity in topologically nontrivial flat bands Wally W. <ww84wa@aim.com> - 2015-11-20 22:24 -0500
            Re: Superfluidity in topologically nontrivial flat bands benj <none@gmail.com> - 2015-11-21 04:59 -0500
            Re: Superfluidity in topologically nontrivial flat bands jimp@specsol.spam.sux.com - 2015-11-21 07:18 +0000
              Re: Superfluidity in topologically nontrivial flat bands dvus <dven1@adelphia.net> - 2015-11-21 09:10 -0500
          Re: Superfluidity in topologically nontrivial flat bands benj <none@gmail.com> - 2015-11-21 05:02 -0500

#534191 — Superfluidity in topologically nontrivial flat bands

FromSam Wormley <swormley1@gmail.com>
Date2015-11-20 09:57 -0600
SubjectSuperfluidity in topologically nontrivial flat bands
Message-ID<ANmdneMIQplD39LLnZ2dnUU7-Y_OydjZ@giganews.com>
Superfluidity in topologically nontrivial flat bands
> http://phys.org/news/2015-11-superfluidity-topologically-nontrivial-flat-bands.html


> Superconductors are marvellous materials that are able to transport
> electric current and energy without dissipation. For this reason,
> they are extremely useful for constructing magnets that can generate
> enormous magnetic fields without melting. They have found important
> applications as essential components of the Large Hadron Collider
> particle accelerator at CERN, levitating trains, and the magnetic
> resonance imaging tool widely used for medical purposes. Yet, one
> reason why the waiting list for an MRI scan is sometimes so long is
> the cost of the equipment. Indeed, superconductors have to be cooled
> down below one hundred degrees centigrade to manifest their unique
> properties, and this implies the use of expensive refrigerators.
>
> An important open problem in modern materials science is to
> understand the mechanism behind superconductivity, and in particular,
> it would be highly desirable to be able to predict with precision the
> critical temperature below which the superconducting transition
> occurs. In fact, there are no currently available theories that can
> provide accurate predictions for the critical temperature of the most
> useful superconductive materials. This is unfortunate since a sound
> understanding of the mechanism of superconductivity is essential if
> we are interested in synthesizing materials that may one day achieve
> superconductivity at room temperature, without refrigeration.



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#534250

Fromdvus <dven1@adelphia.net>
Date2015-11-20 15:20 -0500
Message-ID<db9dluFbeauU1@mid.individual.net>
In reply to#534191
On 11/20/2015 10:57 AM, Sam Wormley wrote:
> Superfluidity in topologically nontrivial flat bands
>> http://phys.org/news/2015-11-superfluidity-topologically-nontrivial-flat-bands.html
>>
>
>
>> Superconductors are marvellous materials that are able to transport
>> electric current and energy without dissipation. For this reason,
>> they are extremely useful for constructing magnets that can generate
>> enormous magnetic fields without melting. They have found important
>> applications as essential components of the Large Hadron Collider
>> particle accelerator at CERN, levitating trains, and the magnetic
>> resonance imaging tool widely used for medical purposes. Yet, one
>> reason why the waiting list for an MRI scan is sometimes so long is
>> the cost of the equipment. Indeed, superconductors have to be cooled
>> down below one hundred degrees centigrade to manifest their unique
>> properties, and this implies the use of expensive refrigerators.
>>
>> An important open problem in modern materials science is to
>> understand the mechanism behind superconductivity, and in particular,
>> it would be highly desirable to be able to predict with precision the
>> critical temperature below which the superconducting transition
>> occurs. In fact, there are no currently available theories that can
>> provide accurate predictions for the critical temperature of the most
>> useful superconductive materials. This is unfortunate since a sound
>> understanding of the mechanism of superconductivity is essential if
>> we are interested in synthesizing materials that may one day achieve
>> superconductivity at room temperature, without refrigeration.

"Indeed, superconductors have to be cooled down below one hundred 
degrees centigrade to manifest their unique properties..."

Time for tea?

-- 
dvus

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#534323

FromWally W. <ww84wa@aim.com>
Date2015-11-20 21:37 -0500
Message-ID<nmlv4bl6dmkmv64r2i6kci1tk0bt0k31rl@4ax.com>
In reply to#534250
On Fri, 20 Nov 2015 15:20:57 -0500, dvus wrote:

>On 11/20/2015 10:57 AM, Sam Wormley wrote:
>> Superfluidity in topologically nontrivial flat bands
>>> http://phys.org/news/2015-11-superfluidity-topologically-nontrivial-flat-bands.html
>>>
>>
>>
>>> Superconductors are marvellous materials that are able to transport
>>> electric current and energy without dissipation. For this reason,
>>> they are extremely useful for constructing magnets that can generate
>>> enormous magnetic fields without melting. They have found important
>>> applications as essential components of the Large Hadron Collider
>>> particle accelerator at CERN, levitating trains, and the magnetic
>>> resonance imaging tool widely used for medical purposes. Yet, one
>>> reason why the waiting list for an MRI scan is sometimes so long is
>>> the cost of the equipment. Indeed, superconductors have to be cooled
>>> down below one hundred degrees centigrade to manifest their unique
>>> properties, and this implies the use of expensive refrigerators.
>>>
>>> An important open problem in modern materials science is to
>>> understand the mechanism behind superconductivity, and in particular,
>>> it would be highly desirable to be able to predict with precision the
>>> critical temperature below which the superconducting transition
>>> occurs. In fact, there are no currently available theories that can
>>> provide accurate predictions for the critical temperature of the most
>>> useful superconductive materials. This is unfortunate since a sound
>>> understanding of the mechanism of superconductivity is essential if
>>> we are interested in synthesizing materials that may one day achieve
>>> superconductivity at room temperature, without refrigeration.
>
>"Indeed, superconductors have to be cooled down below one hundred 
>degrees centigrade to manifest their unique properties..."
>
>Time for tea?

Sam demonstrates his careful vetting procedure for the spew in his
copy-and-paste efforts.

I thought achieving room-temperature superconductivity was a
researcher's dream.

It is quite an announcement that it is necessary only to cool the
conductor to a temperature lower than the boiling point of water.

Sam teaches us something new every day.

What we learn, or reaffirm, may not be what he intended to teach.

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#534328

FromSam Wormley <swormley1@gmail.com>
Date2015-11-20 21:08 -0600
Message-ID<sdmdnRhHCP7YfdLLnZ2dnUU7-YXOydjZ@giganews.com>
In reply to#534323
On 11/20/15 8:37 PM, Wally W. wrote:
> Sam teaches us something new every day.

   Thanks Wally.


-- 

sci.physics is an unmoderated newsgroup dedicated
to the discussion of physics, news from the physics
community, and physics-related social issues.

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#534331

FromWally W. <ww84wa@aim.com>
Date2015-11-20 22:24 -0500
Message-ID<euov4b1k0agvdpumghek91vrlolifhgfau@4ax.com>
In reply to#534328
On Fri, 20 Nov 2015 21:08:53 -0600, Sam Wormley wrote:

>On 11/20/15 8:37 PM, Wally W. wrote:
>> Sam teaches us something new every day.
>
>   Thanks Wally.

You snipped the next line.

Why?

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#534338

Frombenj <none@gmail.com>
Date2015-11-21 04:59 -0500
Message-ID<kgX3y.128340$yo1.40323@fx23.iad>
In reply to#534331
On 11/20/2015 10:24 PM, Wally W. wrote:
> On Fri, 20 Nov 2015 21:08:53 -0600, Sam Wormley wrote:
>
>> On 11/20/15 8:37 PM, Wally W. wrote:
>>> Sam teaches us something new every day.
>>
>>    Thanks Wally.
>
> You snipped the next line.
>
> Why?
>
Because Wally, in Sam's world it's all about what might, could, may, 
should, is predicted and hopefully one day WILL come true.

What actually is true, is of no more consequence to Sam than it is to 
Herb or HVAC.

-- 

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    /:/\:\  \     /:/\:\  \     /:|:|  |     ___ /::\__\
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  \:\~\:\/:/  / \:\~\:\ \/__/ \/__|:|/:/  /  \::/  /
   \:\ \::/  /   \:\ \:\__\       |:/:/  /    \/__/
    \:\/:/  /     \:\ \/__/       |::/  /
     \::/__/       \:\__\         /:/  /
      ~~            \/__/         \/__/

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#534360

Fromjimp@specsol.spam.sux.com
Date2015-11-21 07:18 +0000
Message-ID<vfi5ic-4h3.ln1@mail.specsol.com>
In reply to#534331
Wally W. <ww84wa@aim.com> wrote:
> On Fri, 20 Nov 2015 21:08:53 -0600, Sam Wormley wrote:
> 
>>On 11/20/15 8:37 PM, Wally W. wrote:
>>> Sam teaches us something new every day.
>>
>>   Thanks Wally.
> 
> You snipped the next line.
> 
> Why?

Because it stopped reading and can't accept it posted nonsense yet again.
 

-- 
Jim Pennino

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#534363

Fromdvus <dven1@adelphia.net>
Date2015-11-21 09:10 -0500
Message-ID<dbbcaiFpu8bU1@mid.individual.net>
In reply to#534360
On 11/21/2015 2:18 AM, jimp@specsol.spam.sux.com wrote:
> Wally W. <ww84wa@aim.com> wrote:
>> On Fri, 20 Nov 2015 21:08:53 -0600, Sam Wormley wrote:
>>
>>> On 11/20/15 8:37 PM, Wally W. wrote:
>>>> Sam teaches us something new every day.
>>>
>>>    Thanks Wally.
>>
>> You snipped the next line.
>>
>> Why?
>
> Because it stopped reading and can't accept it posted nonsense yet again.

Well, it's not "nonsense", it's obviously a typo and typos don't 
normally make sense.

-- 
dvus

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#534340

Frombenj <none@gmail.com>
Date2015-11-21 05:02 -0500
Message-ID<ajX3y.128342$yo1.10971@fx23.iad>
In reply to#534328
On 11/20/2015 10:08 PM, Sam Wormley wrote:
> On 11/20/15 8:37 PM, Wally W. wrote:
>> Sam teaches us something new every day.
>
>    Thanks Wally.

Wally didn't say you teach us something true, Sammy!



-- 

       ___           ___           ___            ___
      /\  \         /\  \         /\__\          /\  \
     /::\  \       /::\  \       /::|  |         \:\  \
    /:/\:\  \     /:/\:\  \     /:|:|  |     ___ /::\__\
   /::\~\:\__\   /::\~\:\  \   /:/|:|  |__  /\  /:/\/__/
  /:/\:\ \:|__| /:/\:\ \:\__\ /:/ |:| /\__\ \:\/:/  /
  \:\~\:\/:/  / \:\~\:\ \/__/ \/__|:|/:/  /  \::/  /
   \:\ \::/  /   \:\ \:\__\       |:/:/  /    \/__/
    \:\/:/  /     \:\ \/__/       |::/  /
     \::/__/       \:\__\         /:/  /
      ~~            \/__/         \/__/

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