| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Influence of a phonon bath in a quantum dot cavity QED system：Dependence of the shape |
| Wang Wei-Sheng (王伟胜), Zhang Ming-Liang (张明亮), Chen Zhi-De (陈芝得) |
| Department of Electronic Engineering, Jinan University, Guangzhou 510632, China |
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Abstract We present a systematic analysis on the role of the quantum dot (QD) shape in the influence of the phonon bath on the dynamics of a QD cavity QED system. The spectral functions of the phonon bath in three representative QD shapes: spherical, ellipsoidal, and disk, are calculated from the carrier wave functions subjected to the confinement potential provided by the corresponding shape. The obtained spectral functions are used to calculate three main effects brought by the phonon bath, i.e., the coupling renormalization, the off-resonance assisted feeding rate and the pure dephasing rate. It is found that the spectral function of a disk QD has the widest distribution, hence the phonon bath in a disk QD can lead to the smallest renormalization factor, the largest dephasing rate in the short time domains(≤ 2 ps), and the off-resonance assisted feeding can support the widest detuning. Except for the pure dephasing rate in the long time domains, all the influences brought by the phonon bath show serious shape dependence.
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Received: 15 January 2014
Revised: 23 February 2014
Accepted manuscript online:
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PACS:
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42.50.Pq
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(Cavity quantum electrodynamics; micromasers)
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78.67.Hc
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(Quantum dots)
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63.20.kd
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(Phonon-electron interactions)
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63.22.-m
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(Phonons or vibrational states in low-dimensional structures and nanoscale materials)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10974072). |
Corresponding Authors:
Chen Zhi-De
E-mail: tzhidech@jnu.edu.cn
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Cite this article:
Wang Wei-Sheng (王伟胜), Zhang Ming-Liang (张明亮), Chen Zhi-De (陈芝得) Influence of a phonon bath in a quantum dot cavity QED system：Dependence of the shape 2014 Chin. Phys. B 23 094205
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| [1] |
Williamson A J 2002 Quantum Dots (Singapore: World Scientific) p. 15
|
| [2] |
Petroff P M 2003 Single Quantum Dots (Berlin: Springer-Verlag) p. 1
|
| [3] |
Fox M 2006 Quantum Optics: An Introduction (Oxford: Oxford University Press) p. 333
|
| [4] |
Li X K, Jin P, Liang D C, Wu J and Wang Z G 2013 Chin. Phys. B 22 048102
|
| [5] |
Niu Z C, Sun B Q, Dou X M, Xiong Y H, Wang H L, Ni H Q, Li S S and Xia J B 2010 Physics 39 737 (in Chinese)
|
| [6] |
Michler P, Kiraz A, Becher C, Schoenfeld W V, Petroff P M, Zhang L D, Hu E and Imamoğlu A 2000 Science 290 2282
|
| [7] |
Stevenson R M, Thompson R M, Shields A J, Farrer I, Kardynal B E, Ritchie D A and Pepper M 2002 Phys. Rev. B 66 081302
|
| [8] |
Chen W, Xue Z Y, Wang Z D and Shen R 2014 Chin. Phys. B 23 030309
|
| [9] |
Troiani F, Molinari E and Hohenester U 2003 Phys. Rev. Lett. 90 206802
|
| [10] |
Ramsay A J, Gopal A V, Gauger E M, Nazir A, Lovett B W, Fox A M and Skolnick M S 2010 Phys. Rev. Lett. 104 017402
|
| [11] |
Ramsay A J, Godden T M, Boyle S J, Gauger E M, Nazir A, Lovett B W, Fox A M and Skolnick M S 2010 Phys. Rev. Lett. 105 177402
|
| [12] |
Ramsay A J, Godden T M, Boyle S J, Gauger E M, Nazir A, Lovett B W, Gopal A V, Fox A M and Skolnick M S 2011 J. Appl. Phys. 109 102415
|
| [13] |
McCutcheon D P S and Nazir A 2010 New J. Phys. 12 113042
|
| [14] |
Hennessy K, Badolato A, Winger M, Gerace D, Atatüre M, Gulde S, Fält S, Hu E L and Imamoğlu A 2007 Nature 445 896
|
| [15] |
Nysteen A, Kaer P and Mork J 2013 Phys. Rev. Lett. 110 087401
|
| [16] |
Kaer P, Nielsen T R, Lodahl P, Jauho A P and Mork J 2012 Phys. Rev. B 86 085302
|
| [17] |
Hughes S, Yao P, Milde F, Knorr A, Dalacu D, Mnaymneh K, Sazonova V, Poole P J, Aers G C, Lapointe J, Cheriton R and Williams R L 2011 Phys. Rev. B 83 165313
|
| [18] |
Roy C and Hughes S 2011 Phys. Rev. X 1 021009
|
| [19] |
Xue J, Zhu K D and Zheng H 2008 J. Phys.: Condens. Matter 20 325209
|
| [20] |
Hohenester U 2010 Phys. Rev. B 81 155303
|
| [21] |
Leggett A J, Chakravarty S, Dorsey A T, Fisher M P A, Anupam G and Zwerger W 1987 Rev. Mod. Phys. 59 1
|
| [22] |
Krummheuer B, Axt V M and Kuhn T 2002 Phys. Rev. B 65 195313
|
| [23] |
Takagahara T 1999 Phys. Rev. B 60 2638
|
| [24] |
Calarco T, Datta A, Fedichev P, Pazy E and Zoller P 2003 Phys. Rev. A 68 012310
|
| [25] |
Stock E, Dachner M R, Warming T, Schliwa A, Lochmann A, Hoffmann A, Toropov A I, Bakarov A K, Derebezov I A, Richter M, Haisler V A, Knorr A and Bimberg D 2011 Phys. Rev. B 83 041304
|
| [26] |
Mahan G D 2000 Many Particle Physics (3th edn.) (New York: Plenum Press) p. 461
|
| [27] |
Dalacu D, Mnaymneh K, Sazonova V, Poole P J, Aers G C, Lapointe J, Cheriton R, Thorpe A J S and Williams R 2010 Phys. Rev. B 82 033301
|
| [28] |
Hohenester U, Laucht A, Kaniber M, Hauke N, Neumann A, Mohtashami A, Seliger M, Bichler M and Finley J J 2009 Phys. Rev. B 80 201311
|
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