Exciton-polariton condensation

Contemporary Physics

Volumn 52, Issue 2, 2011, Pages 131-151

  Keeling, Jonathan ^a   Berloff, Natalia G ^b  

^a UNIVERSITY OF ST ANDREWS   (United Kingdom)

^b UNIVERSITY OF CAMBRIDGE   (United Kingdom)

Author keywords

Bec; Exciton polariton; Pattern formation; Polariton laser; Superfluidity

Indexed keywords

EID: 79951717275     PISSN: 00107514     EISSN: 13665812     Source Type: Journal    
DOI: 10.1080/00107514.2010.550120     Document Type: Article

References (134)

1. M.S. Skolnick, T.A. Fisher, and D.M. Whittaker, Strong coupling phenomena in quantum microcavity structures, Semicond. Sci. Technol. 13 (1998), pp. 645-669.
2. V. Savona, C. Piermarocchi, A. Quattropani, P. Schwendimann, and F. Tassone, Optical properties of microcavity polaritons, Phase Transitions 68 (1999), pp. 169-279.
3. G. Khitrova, H.M. Gibbs, F. Jahnke, M. Kira, and S.W. Koch, Nonlinear optics of normal-mode-coupling semiconductor microcavities, Rev. Mod. Phys. 71 (1999), pp. 1591-1639.
4. C. Ciuti, P. Schwendimann, and A. Quattropani, Theory of polariton parametric interactions in semiconductor microcavities, Semicond. Sci. Technol. 18 (2003), pp. S279-S293.
5. J. Keeling, F.M. Marchetti, M.H. Szymanska, and P.B. Littlewood, Collective coherence in planar semiconductor microcavities, Semicond. Sci. Technol. 22 (2007), pp. R1-R26.
6. H. Deng, H. Haug, and Y. Yamamoto, Exciton- polariton Bose-Einstein condensation, Rev. Mod. Phys. 82 (2010), pp. 1489-1537.
7. I.A. Shelykh, A.V. Kavokin, Y.G. Rubo, T.C.H. Liew, and G. Malpuech, Polariton polarization-sensitive phenomena in planar semiconductor microcavities, Semi-cond. Sci. Technol. 25 (2010), 013001.
8. Y. Yamamoto, F. Tassone, and H. Cao, Semiconductor Cavity Quantum Electrodynamics, Springer Tracts in Modern Physics, Vol. 167, Springer-Verlag, Berlin, 2000.
9. A. Kavokin and G. Malpuech, Cavity Polaritons, Thin Films and Nanostructures, Vol. 32, Elsevier, New York, 2003.
10. A.V. Kavokin, J.J. Baumberg, G. Malpuech, and F.P. Laussy, Microcavities, Oxford Univeristy Press, Oxford, 2007.
11. J.J. Baumberg and L. Vina (eds.), Semicond. Sci. Technol. 18 (2003), pp. S279-S428.
12. Deveand, B. (ed.), Phys. Status Solidi B 242 (2005), pp. 2147-2356.
13. Special section: Optical coherence and collective phenomena in nanostructures, P.B. Littlewood, F.M. Marchetti and M.H. Szymanska (eds.), J. Phys.: Condens. Matter 19 (2007), pp. 295201-295219.
14. G. Slavcheva and P. Roussignol (eds.), Optical Generation and Control of Quantum Coherence in Semiconductor Nanostructures, Springer, Heidleberg, 2010.
15. L.P. Pitaevskii and S. Stringari, Bose-Einstein Condensation, Clarendon Press, Oxford, 2003.
16. A.J. Leggett, Quantum Liquids, Oxford University Press, Oxford, 2008.
17. B.V. Svistunov, E. Babaev, and N. Prokofev, Super-fluid States of Matter, CRC Press, 2011.
18. M.O. Scully and M.S. Zubairy, Quantum Optics, Cambridge University Press, Cambridge, UK, 1997.
19. P. Meystre and M. Sargent III, Elements of Quantum Optics, 4th ed., Springer, Berlin, 2007.
20. C. Denz, M. Schawb, and C. Weilnau, Transverse-Pattern Formation in Photorefractive Optics, Springer Tracts in Modern Physics, Vol. 188, Springer-Verlag, Berlin, 2003.
21. K. Staliunas and V.J. Sanchez-Morcillo, Transverse Patterns in Nonlinear Optical Resonators, Springer Tracts in Modern Physics, Vol. 183, Springer-Verlag, Berlin, 2003.
22. C.N. Yang, Concept of off-diagonal long-range order and the quantum phase of liquid He and of superconductors, Rev. Mod. Phys. 34 (1962), pp. 694-704.
23. P. Carruthers and K.S. Dy, Coherent states and irreversible processes in anharmonic crystals, Phys. Rev. 147 (1966), pp. 214-222.
24. Y. Kagan and B.V. Svistunov, Evolution of correlation properties and appearance of broken symmetry in the process of Bose-Einstein condensation, Phys. Rev. Lett. 79 (1997), pp. 3331-3334.
25. R. Graham and H. Haken, Laserlight - first example of a second-order phase transition far away from thermal equilibrium, Z. Physik A 237 (1970), pp. 31-46.
26. J.J. Hopfield, Theory of the contribution of excitons to the complex dielectric constant of crystals, Phys. Rev. 112 (1958), pp. 1555-1567.
27. S.I. Pekar, The theory of electromagnetic waves in a crystal in which excitons are produced, Sov. Phys. JETP 6 (1958), p. 785.
28. G. Bjork, S. Machida, Y. Yamamoto, and K. Igeta, Modification of spontaneous emission rate in planar dielectric microcavity structures, Phys. Rev. A 44 (1991), pp. 669-681.
29. C. Weisbuch, M. Nishioka, A. Ishikawa, and Y. Arakawa, Observation of the coupled exciton-photon mode splitting in a semiconductor quantum microcavity, Phys. Rev. Lett. 69 (1992), pp. 3314-3317.
30. G. Rochat, C. Ciuti, V. Savona, C. Piermarocchi, A. Quattropani, and P. Schwendimann, Excitonic Bloch equations for a two-dimensional system of interacting excitons, Phys. Rev. B 61 (2000), pp. 13856-13862.
31. M.D. Martin, G. Aichmayr, A. Amo, D. Ballarini, Ł. Kłopotowski, and L. Vina, Polariton and spin dynamics in semiconductor microcavities under non-resonant excitation, J. Phys.: Condens. Matter 19 (2007), 295204.
32. S.O. Demokritov, V.E. Demidov, O. Dzyapko, G.A. Melkov, A.A. Serga, B. Hillebrands, and A.N. Slavin, Bose-Einstein condensation of quasi-equilibrium mag-nons at room temperature under pumping, Nature 443 (2006), pp. 430-433.
33. V.E. Demidov, O. Dzyapko, S.O. Demokritov, G.A. Melkov, and A.N. Slavin, Observation of spontaneous coherence in Bose-Einstein condensate of magnons, Phys. Rev. Lett. 100 (2008), 047205.
34. A.V. Chumak, G.A. Melkov, V.E. Demidov, O. Dzyapko, V.L. Safonov, and S.O. Demokritov, Bose- Einstein condensation of magnons under incoherent pumping, Phys. Rev. Lett. 102 (2009), 187205.
35. O. Dzyapko, V.E. Demidov, M. Buchmeier, T. Stockhoff, G. Schmitz, G.A. Melkov, and S.O. Demokritov, Excitation of two spatially separated Bose-Einstein condensates of magnons, Phys. Rev. B 80 (2009), 060401.
36. G. Volovik, Twenty years of magnon Bose condensation and spin current superfluidity in 3He-B, J. Low Temp. Phys. 153 (2008), p. 266.
37. Y.M. Bunkov and G.V. Volovik, Magnon Bose- Einstein condensation and spin superfluidity, J. Phys.: Condens. Matter 22 (2010), p. 1.
38. A. Griffin, D. Snoke, and S. Stringari (eds.), Bose- Einstein Condensation, Cambridge University Press, Cambridge, 1995.
39. J.I. Jang and J.P. Wolfe, Auger recombination and biexcitons in Cu2O: a case for dark excitonic matter, Phys. Rev. B 74 (2006), 045211.
40. L.V. Butov, C.W. Lai, A.L. Ivanov, A.C. Gossard, and D.S. Chemla, Towards Bose-Einstein condensation of excitons in potential traps, Nature 417 (2002), p. 47.
41. L.V. Butov, A.C. Gossard, and D.S. Chemla, Macro-scopically ordered state in an exciton system, Nature 418 (2002), pp. 751-754.
42. D. Snoke, S. Denev, Y. Liu, L. Pfeiffer, and K. West, Long-range transport in excitonic dark states in coupled quantum wells, Nature 418 (2002), p. 754.
43. S. Yang, A.T. Hammack, M.M. Fogler, L.V. Butov, and A.C. Gossard, Coherence length of cold exciton gases in coupled quantum wells, Phys. Rev. Lett. 97 (2006), 187402.
44. L.V. Butov, Condensation and pattern formation in cold exciton gases in coupled quantum wells, J. Phys.: Condens. Matter 16 (2004), p. R1577.
45. J.P. Eisenstein and A.H. MacDonald, Bose-Einstein condensation of excitons in bilayer electron system, Nature 432 (2004), p. 691.
46. J.P. Eisenstein, Half full or half empty, Science 305 (2004), p. 950.
47. L.S. Dang, D. Heger, R. Andre, F. Bœuf, and R. Romestain, Stimulation of polariton photoluminescence in semiconductor microcavity, Phys. Rev. Lett. 81 (1998), pp. 3920-3923.
48. P. Senellart, J. Bloch, B. Sermage, and J.Y. Marzin, Microcavity polariton depopulation as evidence for stimulated scattering, Phys. Rev. B 62 (2000), pp. R16263-R16266.
49. R. Huang, F. Tassone, and Y. Yamamoto, Experimental evidence of stimulated scattering of excitons into microcavity polaritons, Phys. Rev. B 61 (2000), pp. R7854-R7857.
50. D.M. Whittaker, Effects of polariton-energy renorma-lization in the microcavity optical parametric oscillator, Phys. Rev. B 71 (2005), 115301.
51. P.G. Savvidis, J.J. Baumberg, R.M. Stevenson, M.S. Skolnick, D.M. Whittaker, and J.S. Roberts, Angle-resonant stimulatedpolariton amplifier, Phys. Rev. Lett. 84 (2000), pp. 1547-1550.
52. C. Ciuti, P. Schwendimann, B. Deveaud, and A. Quattropani, Theory of the angle-resonant polariton amplifier, Phys. Rev. B 62 (2000), pp. R4825-R4828.
53. J.J. Baumberg, P.G. Savvidis, R.M. Stevenson, A.I. Tartakovskii, M.S. Skolnick, D.M. Whittaker, and J.S. Roberts, Parametric oscillation in a vertical microcavity: a polariton condensate or micro-optical parametric oscillation, Phys. Rev. B 62 (2000), pp. R16247-R16250.
54. C. Ciuti and I. Carusotto, Quantum fluid effects and parametric instabilities in microcavities, Phys. Status Solidi B 242 (2005), pp. 2224-2245.
55. M. Wouters and I. Carusotto, Absence of long-range coherence in the parametric emission of photonic wires, Phys. Rev. B 74 (2006), 245316.
56. F. Tassone, C Piermarocchi, V. Savona, A. Quattropani, and P. Schwendimann, Bottleneck effects in the relaxation and photoluminescence of microcavity polar-itons, Phys. Rev. B 56 (1997), pp. 7554-7563.
57. T.D. Doan and D.B. Tran Thoai, Suppression of the bottleneck in semiconductor microcavities, Solid State Commun. 123 (2002), pp. 427-430.
58. G. Malpuech, Y.G. Rubo, F.P. Laussy, P. Bigenwald, and A.V. Kavokin, Polariton laser: thermodynamics and quantum kinetic theory, Semicond. Sci. Technol. 18 (2003), p. S395.
59. H.T. Cao, T.D. Doan, D.B. Tran Thoai, and H. Haug, Condensation kinetics of cavity polaritons interacting with a thermalphonon bath, Phys. Rev. B 69 (2004), 245325.
60. J. Kasprzak, M. Richard, S. Kundermann, A. Baas, P. Jeambrun, J.M.J. Keeling, F.M. Marchetti, M.H. Szymanska, R. Andre, J.L. Staehli, V. Savona, P.B. Littlewood, B. Deveaud, and L.S. Dang, Bose-Einstein condensation of exciton polaritons, Nature 443 (2006), p. 409.
61. H. Deng, D. Press, S. Gotzinger, G.S. Solomon, R. Hey, K.H. Ploog, and Y. Yamamoto, Quantum degenerate exciton-polaritons in thermal equilibrium, Phys. Rev. Lett. 97(2006), 146402.
62. J. Kasprzak, D.D. Solnyshkov, R. Andre, L.S. Dang, and G. Malpuech, Formation of an exciton polariton condensate: thermodynamic versus kinetic regimes, Phys. Rev. Lett. 101 (2008), 146404.
63. A. Imamoglu, R.J. Ram, S. Pau, and Y. Yamamoto, Nonequilibrium condensates and lasers without inversion: exciton-polariton lasers, Phys. Rev. A 53 (1996), pp. 4250-4253.
64. M. Richard, J. Kasprzak, R. Andre, R. Romestain, L.S. Dang, G. Malpuech, and A. Kavokin, Experimental evidence for nonequilibrium Bose condensation of exciton polaritons, Phys. Rev. B 72 (2005), 201301.
65. F. Tassone and Y. Yamamoto, Lasing and squeezing of composite bosons in a semiconductor microcavity, Phys. Rev. A 62 (2000), 063809.
66. D. Porras and C. Tejedor, Linewidth of a polariton laser: theoretical analysis of self-interaction effects, Phys. Rev. B 67 (2003), 161310.
67. A.P.D. Love, D.N. Krizhanovskii, D.M. Whittaker, R. Bouchekioua, D. Sanvitto, S.A. Rizeiqi, R. Bradley, M.S. Skolnick, P.R. Eastham, R. Andre, and L.S. Dang, Intrinsic decoherence mechanisms in the microcavity polariton condensate, Phys. Rev. Lett. 101 (2008), 067404.
68. D.M. Whittaker and P.R. Eastham, Coherence properties of the microcavity polariton condensate, Euro. Phys. Lett. 87 (2009), 27002.
69. M.H. Szymanska, J. Keeling, and P.B. Littlewood, Nonequilibrium quantum condensation in an incoherently pumped dissipative system, Phys. Rev. Lett. 96 (2006), 230602.
70. T.D. Doan, H.T. Cao, D.B. Tran Thoai, and H. Haug, Coherence of condensed microcavity polaritons calculated within Boltzmann-Master equations, Phys. Rev. B 78 (2008), 205306.
71. H. Deng, G. Weihs, C. Santori, J. Bloch, and Y. Yamamoto, Condensation of semiconductor microcavity exciton polaritons, Science 298 (2002), p. 199.
72. J. Kasprzak, M. Richard, A. Baas, B. Deveaud, R. Andre, J.P. Poizat, and L.S. Dang, Second-order time correlations within a polariton Bose-Einstein condensate in a CdTe microcavity, Phys. Rev. Lett. 100 (2008), 067402.
73. E. del Valle, D. Sanvitto, A. Amo, F.P. Laussy, R. Andre, C. Tejedor, and L. Vina, Dynamics of the formation and decay of coherence in a polariton condensate, Phys. Rev. Lett. 103 (2009), 096404.
74. H. Deng, G.S. Solomon, R. Hey, K.H. Ploog, and Y. Yamamoto, Spatial coherence of a polariton condensate, Phys. Rev. Lett. 99 (2007), 126403.
75. C.W. Lai, N.Y. Kim, S. Utsunomiya, G. Roumpos, H. Deng, M.D. Fraser, T. Byrnes, P. Recher, N. Kumada, T. Fujisawa, and Y. Yamamoto, Coherent zero-state and p -state in an exciton-polariton condensate array, Nature 450 (2007), pp. 529-532.
76. E. Wertz, L. Ferrier, D. Solnyshkov, R. Johne, D. Sanvitto, A. Lematre, I. Sagnes, R. Grousson, A.V. Kavokin, P. Senellart, G. Malpuech, and J. Bloch, Spontaneous formation and optical manipulation of extended polariton condensates, Nat. Phys. 6 (2010), p. 860.
77. L.M. Pismen, Patterns and Interfaces in Dissipative Dynamics, Springer-Verlag, Berlin, Heidelberg, 2006.
78. I.S. Aranson and L. Kramer, The world of the complex Ginzburg-Landau equation, Rev. Mod. Phys. 74 (2002), p. 99.
79. A. Griffin, T. Nikuni, and E. Zaremba, Bose-condensed Gases at Finite Temperatures, Cambridge University Press, Cambridge, 2009.
80. M. Richard, J. Kasprzak, R. Romestain, R. Andre, and L.S. Dang, Spontaneous coherent phase transition of polaritons in CdTe microcavities, Phys. Rev. Lett. 94 (2005), 187401.
81. T.D. Doan, H.T. Cao, D.B. Tran Thoai, and H. Haug, Microcavity polariton kinetics for bosonic condensation and lasing in II-VI compound materials, Phys. Rev. B 74 (2006), 115316.
82. M. Wouters, I. Carusotto, and C. Ciuti, Spatial and spectral shape of inhomogeneous nonequilibrium exciton-polariton condensates, Phys. Rev. B 77 (2008), 115340.
83. D.N. Krizhanovskii, K.G. Lagoudakis, M. Wouters, B. Pietka, R.A. Bradley, K. Guda, D.M. Whittaker, M.S. Skolnick, B. Deveaud-Pledran, M. Richard, R. Andre, and L.S. Dang, Coexisting nonequilibrium condensates with long-range spatial coherence in semiconductor microcavities, Phys. Rev. B 80 (2009), 045317.
84. D. Sanvitto, A. Amo, L. Vina, R. Andre, D. Solnyshkov, and G. Malpuech, Exciton-polariton condensation in a natural two-dimensional trap, Phys. Rev. B 80 (2009), 045301.
85. D.N. Krizhanovskii, D.M. Whittaker, R.A. Bradley, K. Guda, D. Sarkar, D. Sanvitto, L. Vina, E. Cerda, P. Santos, K. Biermann, R. Hey, and M.S. Skolnick, Effect of interactions on vortices in a nonequilibrium polariton condensate, Phys. Rev. Lett. 104 (2010), 126402.
86. P.R. Eastham, Mode locking and mode competition in a nonequilibrium solid-state condensate, Phys. Rev. B 78 (2008), 035319.
87. M. Wouters, Synchronized and desynchronized phases of coupled nonequilibrium exciton-polariton condensates, Phys. Rev. B 77 (2008), 121302.
88. M.O. Borgh, J. Keeling, and N.G. Berloff, Spatial pattern formation and polarization dynamics of a nonequilibrium spinor polariton condensate, Phys. Rev. B 81 (2010), 235302.
89. K.G. Lagoudakis, B. Pietka, M. Wouters, R. Andre, and B. Deveaud-Pledran, Coherent oscillations in an exciton-polariton Josephson junction, Phys. Rev. Lett. 105 (2010), 120403.
90. T.C.H. Liew, M. Wouters, and V. Savona, Energy relaxation in a 1-D polariton condensate, 2010.
91. M. Wouters and V. Savona, Energy relaxation in the Gross-Pitaevskii equation, preprint (2010). Available at arXiv:1007.5453.
92. L.P. Pitaevskii, Phenomenological theory of superfluidity near the l point, Sov. Phys. JETP 8 (1959), p. 282.
93. M. Wouters and V. Savona, Superfluidity of a none-quilibrium Bose-Einstein condensate of polaritons, Phys. Rev. B 81 (2010), 054508.
94. J. Keeling and N.G. Berloff, Non-equilibrium solid state quantum condensates: the effect of particle flux on density profiles, Phys. Rev. Lett. 100 (2008), 250401.
95. K.G. Lagoudakis, M. Wouters, M. Richard, A. Baas, I. Carusotto, R. Andre, L.S. Dang, and B. Deveaud-Pledran, Quantized vortices in an exciton-polariton condensate, Nat. Phys. 4 (2008), pp. 706-710.
96. M.R. Matthews, B.P. Anderson, P.C. Haljan, D.S. Hall, C.E. Wieman, and E.A. Cornell, Vortices in a Bose-Einstein condensate, Phys. Rev. Lett. 83 (1999), pp. 2498-2501.
97. I.A. Shelykh, Y.G. Rubo, G. Malpuech, D.D. Sol-nyshkov, and A. Kavokin, Polarization and propagation of polariton condensates, Phys. Rev. Lett. 97 (2006), 066402.
98. J. Kasprzak, R. Andre, L.S. Dang, I.A. Shelykh, A.V. Kavokin, Y.G. Rubo, K.V. Kavokin, and G. Mal-puech, Build up and pinning of linear polarization in the Bose condensates of exciton polaritons, Phys. Rev. B 75 (2007), 045326.
99. Y.G. Rubo, Half vortices in exciton polariton condensates, Phys. Rev. Lett. 99 (2007), 106401.
100. M.T. Solano and Y.G. Rubo, Vortices in exciton- polariton condensates with polarization splitting, J. Phys.: Conf. Ser. 210 (2010), 012024.
101. K.G. Lagoudakis, T. Ostatnicky, A.V. Kavokin, Y.G. Rubo, R. Andre, and B. Deveaud-Pledran, Observation of half-quantum vortices in an exciton-polariton condensate, Science 326 (2009), pp. 974-976.
102. H. Flayac, I.A. Shelykh, D.D. Solnyshkov, and G. Malpuech, Topological stability of the half-vortices in spinor exciton-polariton condensates, Phys. Rev. B 81 (2010), 045318.
103. M.T. Solano and Y.G. Rubo, Comment on "Topological stability of the half-vortices in spinor exciton-polariton condensates", Phys. Rev. B 82 (2010), 127301.
104. D.M. Whittaker, Vortices in the microcavity optical parametric oscillator, Superlattices Microstruct. 41 (2007), pp. 297-300.
105. D. Sanvitto, F.M. Marchetti, M.H. Szymanska, G. Tosi, M. Baudisch, F.P. Laussy, D.N. Krizhanovskii, M.S. Skolnick, L. Marrucci, A. Lemaitre, J. Bloch, C. Tejedor, and L. Vina, Persistent currents and quantized vortices in a polariton superfluid, Nat. Phys. 6 (2010), pp. 527-533.
106. R.I. Kaitouni, O. El Daif, A. Baas, M. Richard, T. Paraiso, P. Lugan, T. Guillet, F. Morier-Genoud, J. Ganiere, J. Staehli, V. Savona, and B. Deveaud, Engineering the spatial confinement of exciton polaritons in semiconductors, Phys. Rev. B 74 (2006), 155311.
107. G. Dasbach, C. Diederichs, J. Tignon, C. Ciuti, P. Roussignol, C. Delalande, M. Bayer, and A. Forchel, Polarization inversion via parametric scattering in quasi-one-dimensional microcavities, Phys. Rev. B 71 (2005), 161308.
108. R. Balili, V. Hartwell, D. Snoke, L. Pfeiffer, and K. West, Bose-Einstein condensation of microcavity polaritons in a trap, Science 316 (2007), pp. 1007-1010.
109. G. Roumpos, W.H. Nitsche, S. Hofling, A. Forchel, and Y. Yamamoto, Gain-induced trapping of micro-cavity exciton polariton condensates, Phys. Rev. Lett. 104 (2010), 126403.
110. A. Amo, S. Pigeon, C. Adrados, R. Houdre, E. Giacobino, C. Ciuti, and A. Bramati, Light engineering of the polariton landscape in semiconductor microcav-ities, Phys. Rev. B 82 (2010), 081301.
111. V. Savona and W. Langbein, Realistic heterointerface model for excitonic states in growth-interrupted GaAs quantum wells, Phys. Rev. B 74 (2006), 075311.
112. W. Langbein and J.M. Hvam, Elastic scattering dynamics of cavity polaritons: evidence for time-energy uncertainty and polariton localization, Phys. Rev. Lett. 88 (2002), 047401.
113. V. Savona, Effect of interface disorder on quantum well excitons and microcavity polaritons, J. Phys.: Condens. Matter 19 (2007), 295208.
114. A. Leggett, Superfluidity, Rev. Mod. Phys. 71 (1999), p. S318.
115. J. Keeling and N.G. Berloff, Condensed-matter physics: going with the flow, Nature 457 (2009), pp. 273-274.
116. I. Carusotto, The meaning of superfluidity for polariton condensates, presented at ICSCE4, Cambridge, UK, 2008. Available at http://tcm.phy.cam.ac.uk/BIG/icsce4/talks/carusotto.pdf.
117. M. Wouters and I. Carusotto, Excitations in a non equilibrium Bose-Einstein condensate of exciton polaritons, Phys. Rev. Lett. 99 (2007), 140402.
118. M. Wouters and I. Carusotto, Goldstone mode of optical parametric oscillators in planar semiconductor microcavities in the strong-coupling regime, Phys. Rev. A 76 (2007), 043807.
119. M. Wouters and I. Carusotto, Superfluidity and critical velocities in nonequilibrium Bose-Einstein condensates, Phys. Rev. Lett. 105 (2010), 020602.
120. S. Utsunomiya, L. Tian, G. Roumpos, C.W. Lai, N. Kumada, T. Fujisawa, M. Kuwata-Gonokami, A. Loffler, S. Hofling, A. Forchel, and Y. Yamamoto, Observation of Bogoliubov excitations in exciton- polariton condensates, Nat. Phys. 4 (2008), pp. 700-705.
121. A. Amo, D. Sanvitto, F.P. Laussy, D. Ballarini, E. del Valle, M.D. Martin, A. Lemaitre, J. Bloch, D.N. Krizhanovskii, M.S. Skolnick, C. Tejedor, and L. Vina, Collective fluid dynamics of a polariton condensate in a semiconductor microcavity, Nature 457 (2009), p. 291.
122. A. Amo, J. Lefrere, S. Pigeon, C. Adrados, C. Ciuti, I. Carusotto, R. Houdre, E. Giacobino, and A. Bramati, Superfluidity of polaritons in semiconductor microcavities, Nat. Phys. 5 (2009), pp. 805-810.
123. I. Carusotto and C. Ciuti, Probing microcavity polariton superfluidity through resonant Rayleigh scattering, Phys. Rev. Lett. 93 (2004), 166401.
124. D.G. Lidzey, D.D.C. Bradley, M.S. Skolnick, T. Virgili, S. Walker, and D.M. Whittaker, Strong exciton-photon coupling in an organic semiconductor microcavity, Nature 395 (1998), pp. 53-55.
125. S. Kena-Cohen and S.R. Forrest, Room-temperature polariton lasing in an organic single-crystal microcavity, Nat. Photonics 4 (2010), pp. 371-375.
126. A. Kavokin and B. Gil, GaN microcavities: giant Rabi splitting and optical anisotropy, Appl. Phys. Lett. 72 (1998), p. 2880.
127. M. Zamfirescu, A. Kavokin, B. Gil, G. Malpuech, and M. Kaliteevski, ZnO as a material mostly adapted for the realization of room-temperature polariton lasers, Phys. Rev. B 65 (2002), 161205.
128. S. Christopoulos, G.B.H. von Hogersthal, A.J.D. Grundy, P.G. Lagoudakis, A.V. Kavokin, J.J. Baum-berg, G. Christmann, R. Butte, E. Feltin, J.F. Carlin, and N. Grandjean, Room-temperature polariton lasing in semiconductor microcavities, Phys. Rev. Lett. 98 (2007), 126405.
129. J.R. Tischler, M.S. Bradley, V. Bulovic, J.H. Song, and A. Nurmikko, Strong coupling in a microcavity LED, Phys. Rev. Lett. 95 (2005), 036401.
130. S.I. Tsintzos, N.T. Pelekanos, G. Konstantinidis, Z. Hatzopoulos, and P.G. Savvidis, A GaAs polariton light-emitting diode operating near room temperature, Nature 453 (2008), pp. 372-375.
131. Y.G. Rubo, A.V. Kavokin, and I.A. Shelykh, Suppression of superfluidity of exciton-polaritons by magnetic field, Phys. Lett. A 358 (2006), p. 227.
132. T.C.H. Liew, Y.G. Rubo, I.A. Shelykh, and A.V. Kavokin, Suppression of Zeeman splitting and polarization steps in localized exciton-polariton condensates, Phys. Rev. B 77 (2008), 125339.
133. J. Keeling, Polarized polariton condensates and coupled XY models, Phys. Rev. B 78 (2008), 205316.
134. H. Deng, G. Weihs, D. Snoke, J. Bloch, and Y. Yamamoto, Polariton lasing vs. photon lasing in a semiconductor microcavity, Proc. Natl. Acad. Sci. USA 100 (2003), pp. 15318-15323.