Coherent states of excitons

The concept of a coherent exciton state is formulated. It is shown that for this state the macroscopic wave function may be introduced which satisfies a nonlinear equation of the type familiar in the phenomenological theory of a superfluid liquid. The corresponding nondissipative flux is the flux of energy. For excitons interacting with an electromagnetic field, a coupled system of Maxwell equations and Ginzburg—Pitaevskii (phenomenological theory of Bose liquid) type equations is obtained.

Keywords: excitons, coherent state of excitons, macroscopic wave function, phenomenological theory of superfluid liqui, Bose-liquid equations, Ginzburg—Pitaevskii equations
PACS: 03.75.Kk, 67.10.−j, 71.35.−y (all)
DOI: 10.3367/UFNe.2017.10.038227
URL: https://ufn.ru/en/articles/2017/11/f/
Web of Science

000424395100006
Scopus

2-s2.0-85042141426
ADS NASA

2017PhyU...60.1180K
Citation: Keldysh L V "Coherent states of excitons" Phys. Usp. 60 1180–1186 (2017)

BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks

Received: 12th, July 2017, accepted: 18th, October 2017

Оригинал: Келдыш Л В «Когерентные состояния экситонов» УФН 187 1273–1279 (2017); DOI: 10.3367/UFNr.2017.10.038227

References (24) ↓ Cited by (32) Similar articles (2)

Moskalenko S A Fiz. Tverd. Tela 4 276 (1962); Moskalenko S A Sov. Phys. Solid State 4 199 (1962)
Blatt J M, Böer K W, Brandt W Phys. Rev. 126 1691 (1962)
Casella R C J. Appl. Phys. 34 1703 (1963)
Keldysh L V, Kozlov A N Zh. Eksp. Teor. Fiz. 54 978 (1968); Keldysh L V, Kozlov A N Sov. Phys. JETP 27 521 (1968)
Agranovich V M, Toshich B S Zh. Eksp. Teor. Fiz. 53 149 (1967); Agranovich V M, Toshich B S Sov. Phys. JETP 26 104 (1968)
Keldysh L V, Kopaev Yu V Fiz. Tverd. Tela 6 2791 (1964); Keldysh L V, Kopaev Yu V Sov. Phys. Solid State 6 2219 (1965)
Des Cloizeaux J J. Phys. Chem. Solids 26 259 (1965)
Kozlov A H, Maksimov L A Zh. Eksp. Teor. Fiz. 48 1184 (1965); Kozlov A N, Maksimov L A Sov. Phys. JETP 21 790 (1965); Kozlov A H, Maksimov L A Zh. Eksp. Teor. Fiz. 49 1284 (1965); Kozlov A N, Maksimov L A Sov. Phys. JETP 22 889 (1966); Kozlov A H, Maksimov L A Zh. Eksp. Teor. Fiz. 50 131 (1966); Kozlov A N, Maksimov L A Sov. Phys. JETP 23 88 (1966)
Kopaev Yu V Fiz. Tverd. Tela 8 223 (1966); Kopaev Yu V Sov. Phys. Solid State 8 175 (1966)
Jérome D, Rice T M, Kohn W Phys. Rev. 158 462 (1967)
Kohn W Phys. Rev. Lett. 19 439 (1967)
Halperin B I, Rice T M Rev. Mod. Phys. 40 755 (1968)
Kohn W, Sherrington D Rev. Mod. Phys. 42 1 (1970)
Chesnut D B J. Chem. Phys. 41 472 (1964)
Keldysh L V Usp. Fiz. Nauk 100 514 (1970); Keldysh L V Sov. Phys. Usp. 13 292 (1970)
Knox R S Theory Of Excitons (New York: Academic Press, 1963); Per. na russk. yaz., Noks R S Teoriya Eksitonov (M.: Mir, 1966)
Agranovich V M, Ginzburg V L Kristallooptika s Uchetom Prostranstvennoi Dispersii i Teoriya Eksitonov (M.: Nauka, 1965); Per. na angl. yaz., Agranovich V M, Ginzburg V L Crystal Optics With Spatial Dispersion, And Excitons (Berlin: Springer-Verlag, 1984)
Keldysh L V Zh. Eksp. Teor. Fiz. 47 1515 (1964); Keldysh L V Sov. Phys. JETP 20 1018 (1965)
Keldysh L V "Kogerentnye sostoyaniya eksitonov" Problemy Teoreticheskoi Fiziki. Pamyati Igorya Evgen’evicha Tamma (Otv. red. V I Ritus) (M.: Nauka, 1972) p. 433
Keldysh L V "Concluding remarks" Trudy IX Mezhdunarodnoi Konf. Po Fizike Poluprovodnikov, Moskva, 23 - 29 Iyulya 1968 G. Vol. 2 (L.: Nauka, 1969) p. 1303 - 1312
Guseinov R R, Keldysh L V Zh. Eksp. Teor. Fiz. 63 2255 (1972); Guseinov R R, Keldysh L V Sov. Phys. JETP 36 1193 (1973)
Keldysh L V Eksitony v Poluprovodnikakh (Otv. red. B M Vul) (M.: Nauka, 1971) p. 5
Keldysh L V, Manenkov A A, Milyaev V A, Mikhailova G N Zh. Eksp. Teor. Fiz. 66 2178 (1974); Keldysh L V, Manenkov A A, Milyaev V A, Mikhailova G N Sov. Phys. JETP 39 1072 (1974)
Tikhodeev S G Usp. Fiz. Nauk 145 3 (1985); Tikhodeev S G Sov. Phys. Usp. 28 1 (1985)