![]() | This page is an archive of past discussions. Do not edit the contents of this page. If you wish to start a new discussion or revive an old one, please do so on the current talk page. |
As the title says. Placing the discussion at Talk:Valence band.-- Officer781 ( talk) 11:26, 25 May 2015 (UTC)
Folks, the article Field (physics) is rated as important but of low quality. Can some attention be directed to improving it. I've listed some "loose ends" in Talk:Field (physics). Perhaps other editors can weigh in on this. Thanks, Isambard Kingdom ( talk) 13:48, 8 June 2015 (UTC)
Wikipedia:Articles for deletion/Self-creation cosmology.
jps ( talk) 20:17, 9 June 2015 (UTC)
Additional opinion would be welcome at Talk:Dimensional analysis § L/T-only dimensions about the appropriateness of including an L/T-only variant of dimensional analysis. I'm surprised that with so many watchers that no-one else has chimed in. — Quondum 05:15, 2 June 2015 (UTC)
An editor, User:Rjowsey, has created the article Complex spacetime, and has started linking to it from physics articles. The status of that article in WP should be determined in terms of WP:OR, WP:N, WP:FRNG, etc., as well was whether it is ready for being in mainspace rather than draft. — Quondum 13:59, 10 June 2015 (UTC)
Anyone know if the topic deserves an article? user:YohanN7 and myself have tried today to fix the article into WP shape. M∧Ŝ c2ħε Иτlk 23:23, 14 June 2015 (UTC)
I have withdrawn the draft now since it would probably not pass WP rules. Twy2008 ( talk) 03:45, 16 June 2015 (UTC)
I have looked at the article Velocity-addition formula and also Spacetime algebra (STA) and I decided I could try to write something about velocity addition or Lorentz transformations in special relativity using the Clifford algebra, STA. The above section might fit into the Velocity-addition formula article if the responses are positive after some more editing. It is possible something is very wrong with what I have written. Also, my skill at editing articles is sadly not as good as many editors like, so sorry about that. Tell me how to write articles better... what wiki editing software is best? Twy2008 ( talk) 22:12, 12 June 2015 (UTC)
Please assist with reviewing this draft. Fiddle Faddle 21:40, 15 April 2015 (UTC)
Quantum Thermodynamics
Quantum thermodynamics is the study of the relations between two independent physical theories: thermodynamics and quantum mechanics. The two independent theories address the physical phenomena of light and matter. In 1905 Einstein argued that the requirement of consistency between thermodynamics and electromagnetism... [1] leads to the conclusion that light is quantized obtaining the relation . This paper is the dawn of quantum theory. In a few decades quantum theory became established with an independent set of rules [2]. Currently quantum thermodynamics addresses the emergence of thermodynamic laws from quantum mechanics. It differs from quantum statistical mechanics in the emphasis on dynamical processes out of equilibrium. In addition there is a quest for the theory to be relevant for a single individual quantum system.
A dynamical view of quantum thermodynamics
There is an intimate connection of quantum thermodynamics with the theory of open quantum systems [3]. Quantum mechanics inserts dynamics into thermodynamics, giving a sound foundation to finite-time-thermodynamics.
References
I recommend to that the article "quantum thermodynamics" will have it own page and will not be included or merged with "quantum statistical mechanics"
My main argument is the following:
To merge "Quantum thermodynamics" with "quantum statistical mechanics" is even worse than to merge classical thermodynamics with classical statistical mechanics.
Like in the classical case the two theories have some overlap in few concepts e.g. entropy and temperature. However, the difference between the two theory in the goals and methods is huge. If the classical difference is not clear to some of the people who suggesting merging "Quantum thermodynamics" with "quantum statistical mechanics” I ask that they will reconsider their recommendation to merge the two.
Moreover, it is not a coincidence that "quantum statistical mechanics” in Wiki exist for so long and contain only very basic concepts (no actual results there). The reason is that this terminology is not used by physicists. I think it is wrong to use wikipedia to perpetuate it.
As for COI, the author of the Wiki page "quantum thermodynamics” is well known in the field and it is natural that some of his own work appear there. However he left space (i.e complete section) to fields in QT that he himself is not studying (like resource theory). At least he never published anything on these other field. I guess since he not an expert on these other field he wrote little on them and left for other users to extend them.
to see what is going on in quantum thermodynamics nowadays I recommend reading this most updated review. Inside there are reference to more specific review in quantum review. Even though this review is more dedicated to bridge between quantum thermo and information theory I think it describes well the current state of research in QT:
http://arxiv.org/pdf/1505.07835v1.pdf
Since it is just a review I expect it will soon be published in a peer reviewed journal.
For many years the field has been dormant but about 3 years ago it started to grow very rapidly. Here are links to few conference:
http://ifisc.uib-csic.es/qtd2/ http://www.wqit-quantum.if.ufg.br/p/7080-welcome https://qut.ethz.ch/events/12-events-past/49-conference
I am a physicist and not all physicists that I talk to immediately understand what QT is all about. Some think that it is about using quantum mechanics to explain thermodynamics. This puzzles them since classical thermodynamics can already be understood from statistical mechanics.
The goal of QT is similar to classical thermodynamics. To understand thermal transformation of open system coupled to thermal reservoirs. This may be a single shot work extraction scenario or a heat machine (engine refrigerator) working in steady state. What makes it quantum and also what makes it different from statistical mechanics (classical or quantum) is that the system is very small (e.g. one particle) so that: 1. It does not equilibrate on it own when not coupled to the bath. Furthermore in general it has no equation of state (e.g. one particle) that connects thermodynamics quantities like S,E,T,V... 2. Since there is only one or few particles involved ensemble average and statistical mechanics tools that really on many particle averaging cannot be applied.
Goal of quantum thermodynamics (just examples not a complete list):
In the context of heat machines QT concerns question like: what happens if a quantum heat machine is measure during it’s operation? what are the differences in thermodynamics quantities between a classical engine and a quantum engine? Are the new thermodynamics effects that do not appear in classical thermodynamics. Can quantum entanglement and quantum discord can be used to manipulate in new ways thermodynamics quantities such as work, heat and entropy generation? Can quantum catalyst be used for improving heat engine? What transformation are forbidden by QT? Are there extension to the second law in the microscopic world?
and so on...
As you can see the goals are very different from that of statistical mechanics (quantum or not).
In light of all this I highly recommend that "quantum thermodynamics” will be an independent article. The present version will soon be modified by the active community in this field once it is published. — Preceding unsigned comment added by Tnd1111 ( talk • contribs) 07:25, 15 June 2015 (UTC)
A new copy-paste detection bot is now in general use on English Wikipedia. Come check it out at the EranBot reporting page. This bot utilizes the Turnitin software (ithenticate), unlike User:CorenSearchBot that relies on a web search API from Yahoo. It checks individual edits rather than just new articles. Please take 15 seconds to visit the EranBot reporting page and check a few of the flagged concerns. Comments welcome regarding potential improvements. These likely copyright violations can be searched by WikiProject categories. Use "control-f" to jump to your area of interest.-- Lucas559 ( talk) 22:36, 25 June 2015 (UTC)
Hi WP:PHYS,
The AfC queue is really (read, completely) backlogged - I'd like to invite any of you to poke this as well as any other physics related draft in AfC. Cheers! Accents 06:04, 15 June 2015 (UTC)
If the project can set up a way to prominently display
Draft Physics articles |
---|
perhaps in the "to-do" list, these drafts might get more expert reviews sooner rather than later. Roger (Dodger67) ( talk) 16:44, 22 June 2015 (UTC)
![]() | This page is an archive of past discussions. Do not edit the contents of this page. If you wish to start a new discussion or revive an old one, please do so on the current talk page. |
As the title says. Placing the discussion at Talk:Valence band.-- Officer781 ( talk) 11:26, 25 May 2015 (UTC)
Folks, the article Field (physics) is rated as important but of low quality. Can some attention be directed to improving it. I've listed some "loose ends" in Talk:Field (physics). Perhaps other editors can weigh in on this. Thanks, Isambard Kingdom ( talk) 13:48, 8 June 2015 (UTC)
Wikipedia:Articles for deletion/Self-creation cosmology.
jps ( talk) 20:17, 9 June 2015 (UTC)
Additional opinion would be welcome at Talk:Dimensional analysis § L/T-only dimensions about the appropriateness of including an L/T-only variant of dimensional analysis. I'm surprised that with so many watchers that no-one else has chimed in. — Quondum 05:15, 2 June 2015 (UTC)
An editor, User:Rjowsey, has created the article Complex spacetime, and has started linking to it from physics articles. The status of that article in WP should be determined in terms of WP:OR, WP:N, WP:FRNG, etc., as well was whether it is ready for being in mainspace rather than draft. — Quondum 13:59, 10 June 2015 (UTC)
Anyone know if the topic deserves an article? user:YohanN7 and myself have tried today to fix the article into WP shape. M∧Ŝ c2ħε Иτlk 23:23, 14 June 2015 (UTC)
I have withdrawn the draft now since it would probably not pass WP rules. Twy2008 ( talk) 03:45, 16 June 2015 (UTC)
I have looked at the article Velocity-addition formula and also Spacetime algebra (STA) and I decided I could try to write something about velocity addition or Lorentz transformations in special relativity using the Clifford algebra, STA. The above section might fit into the Velocity-addition formula article if the responses are positive after some more editing. It is possible something is very wrong with what I have written. Also, my skill at editing articles is sadly not as good as many editors like, so sorry about that. Tell me how to write articles better... what wiki editing software is best? Twy2008 ( talk) 22:12, 12 June 2015 (UTC)
Please assist with reviewing this draft. Fiddle Faddle 21:40, 15 April 2015 (UTC)
Quantum Thermodynamics
Quantum thermodynamics is the study of the relations between two independent physical theories: thermodynamics and quantum mechanics. The two independent theories address the physical phenomena of light and matter. In 1905 Einstein argued that the requirement of consistency between thermodynamics and electromagnetism... [1] leads to the conclusion that light is quantized obtaining the relation . This paper is the dawn of quantum theory. In a few decades quantum theory became established with an independent set of rules [2]. Currently quantum thermodynamics addresses the emergence of thermodynamic laws from quantum mechanics. It differs from quantum statistical mechanics in the emphasis on dynamical processes out of equilibrium. In addition there is a quest for the theory to be relevant for a single individual quantum system.
A dynamical view of quantum thermodynamics
There is an intimate connection of quantum thermodynamics with the theory of open quantum systems [3]. Quantum mechanics inserts dynamics into thermodynamics, giving a sound foundation to finite-time-thermodynamics.
References
I recommend to that the article "quantum thermodynamics" will have it own page and will not be included or merged with "quantum statistical mechanics"
My main argument is the following:
To merge "Quantum thermodynamics" with "quantum statistical mechanics" is even worse than to merge classical thermodynamics with classical statistical mechanics.
Like in the classical case the two theories have some overlap in few concepts e.g. entropy and temperature. However, the difference between the two theory in the goals and methods is huge. If the classical difference is not clear to some of the people who suggesting merging "Quantum thermodynamics" with "quantum statistical mechanics” I ask that they will reconsider their recommendation to merge the two.
Moreover, it is not a coincidence that "quantum statistical mechanics” in Wiki exist for so long and contain only very basic concepts (no actual results there). The reason is that this terminology is not used by physicists. I think it is wrong to use wikipedia to perpetuate it.
As for COI, the author of the Wiki page "quantum thermodynamics” is well known in the field and it is natural that some of his own work appear there. However he left space (i.e complete section) to fields in QT that he himself is not studying (like resource theory). At least he never published anything on these other field. I guess since he not an expert on these other field he wrote little on them and left for other users to extend them.
to see what is going on in quantum thermodynamics nowadays I recommend reading this most updated review. Inside there are reference to more specific review in quantum review. Even though this review is more dedicated to bridge between quantum thermo and information theory I think it describes well the current state of research in QT:
http://arxiv.org/pdf/1505.07835v1.pdf
Since it is just a review I expect it will soon be published in a peer reviewed journal.
For many years the field has been dormant but about 3 years ago it started to grow very rapidly. Here are links to few conference:
http://ifisc.uib-csic.es/qtd2/ http://www.wqit-quantum.if.ufg.br/p/7080-welcome https://qut.ethz.ch/events/12-events-past/49-conference
I am a physicist and not all physicists that I talk to immediately understand what QT is all about. Some think that it is about using quantum mechanics to explain thermodynamics. This puzzles them since classical thermodynamics can already be understood from statistical mechanics.
The goal of QT is similar to classical thermodynamics. To understand thermal transformation of open system coupled to thermal reservoirs. This may be a single shot work extraction scenario or a heat machine (engine refrigerator) working in steady state. What makes it quantum and also what makes it different from statistical mechanics (classical or quantum) is that the system is very small (e.g. one particle) so that: 1. It does not equilibrate on it own when not coupled to the bath. Furthermore in general it has no equation of state (e.g. one particle) that connects thermodynamics quantities like S,E,T,V... 2. Since there is only one or few particles involved ensemble average and statistical mechanics tools that really on many particle averaging cannot be applied.
Goal of quantum thermodynamics (just examples not a complete list):
In the context of heat machines QT concerns question like: what happens if a quantum heat machine is measure during it’s operation? what are the differences in thermodynamics quantities between a classical engine and a quantum engine? Are the new thermodynamics effects that do not appear in classical thermodynamics. Can quantum entanglement and quantum discord can be used to manipulate in new ways thermodynamics quantities such as work, heat and entropy generation? Can quantum catalyst be used for improving heat engine? What transformation are forbidden by QT? Are there extension to the second law in the microscopic world?
and so on...
As you can see the goals are very different from that of statistical mechanics (quantum or not).
In light of all this I highly recommend that "quantum thermodynamics” will be an independent article. The present version will soon be modified by the active community in this field once it is published. — Preceding unsigned comment added by Tnd1111 ( talk • contribs) 07:25, 15 June 2015 (UTC)
A new copy-paste detection bot is now in general use on English Wikipedia. Come check it out at the EranBot reporting page. This bot utilizes the Turnitin software (ithenticate), unlike User:CorenSearchBot that relies on a web search API from Yahoo. It checks individual edits rather than just new articles. Please take 15 seconds to visit the EranBot reporting page and check a few of the flagged concerns. Comments welcome regarding potential improvements. These likely copyright violations can be searched by WikiProject categories. Use "control-f" to jump to your area of interest.-- Lucas559 ( talk) 22:36, 25 June 2015 (UTC)
Hi WP:PHYS,
The AfC queue is really (read, completely) backlogged - I'd like to invite any of you to poke this as well as any other physics related draft in AfC. Cheers! Accents 06:04, 15 June 2015 (UTC)
If the project can set up a way to prominently display
Draft Physics articles |
---|
perhaps in the "to-do" list, these drafts might get more expert reviews sooner rather than later. Roger (Dodger67) ( talk) 16:44, 22 June 2015 (UTC)