I don't know what is "bilinear responce". I would be grateful for any help.
Feb 11, 2015 #1 hokhani 443 7 Main Question or Discussion Point I don't know what is "bilinear responce". I would be grateful for any help.
Main Question or Discussion Point I don't know what is "bilinear responce". I would be grateful for any help.
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Feb 11, 2015 #3 hokhani 443 7 DrDu said: Context? Yes, I saw the term "bilinear response" in a paper and I don't understand it.
Feb 11, 2015 #4 DrDu Science Advisor 6,023 755 "In a paper". Do you think this is helpful? Maybe you could give a citation and quote the relevant part?
"In a paper". Do you think this is helpful? Maybe you could give a citation and quote the relevant part?
Feb 11, 2015 #5 hokhani 443 7 http://journals.aps.org/prb/abstract/10.1103/PhysRevB.58.R10135 You can see the term "bilinear response" in the first paragraph of page 3 in the above article.
http://journals.aps.org/prb/abstract/10.1103/PhysRevB.58.R10135 You can see the term "bilinear response" in the first paragraph of page 3 in the above article.
Feb 12, 2015 #6 DrDu Science Advisor 6,023 755 It means that it is linear in both ##\delta X_1## and ##\delta X_2##. This is generally used for expressions of the form xy. Also the scalar product ##\langle \phi|\psi \rangle ## is bilinear in ##\psi## and ##\phi^*##.
It means that it is linear in both ##\delta X_1## and ##\delta X_2##. This is generally used for expressions of the form xy. Also the scalar product ##\langle \phi|\psi \rangle ## is bilinear in ##\psi## and ##\phi^*##.