Recent publications:

T. Takagahara, "Theory of unitary spin rotation and spin-state tomography for a single electron and two electrons", J. Opt. Soc. Am. B 27, pp. A46-A62 (2010).

O. Cakir and T. Takagahara, “Proposals of nuclear spin quantum memory in group-IV elemental and II-VI semiconductors”, Phys. Rev. B 80, 155323 (2009).

Keishiro Goshima, Kazuhiro Komori, Takeyoshi Sugaya, and Toshihide Takagahara, "Formation and control of a correlated exciton two-qubit system in a coupled quantum dot", Phys. Rev. B 79, 205313 (2009).

O. Cakir and T. Takagahara,“Quantum dynamics in electron-nuclei coupled spin system in quantum dots: Bunching, revival, and quantum correlation in electron-spin measurements”, Phys. Rev. B 77, 115304 (2008).

T. Takagahara and O. Cakir, “Theoretical aspects of quantum state transfer, correlation measurement and electron-nuclei coupled dynamics in quantum dots”, J. Nanophoton. 1, 011593 (2007).

S. Yamauchi, A. Shikanai, I. Morohashi, S. Furue, K. Komori, T. Sugaya, and T. Takagahara, "Correlated photon emission in a thick barrier coupled quantum dot", J. Appl. Phys. 102, 094303 (2007).

O. Cakir and T. Takagahara, "Electron spin dynamics and hyperfine interaction in coupled quantum dots", phys. stat. sol. (c) 3, 4392-4395 (2006).

Q. Q. Wang, A. Muller, P. Bianucci, E. Rossi, Q. K. Xue, T. Takagahara, C. Piermarocchi, A. H. MacDonald, and C. K. Shih, "Decoherence processes during optical manipulation of excitonic qubits in semiconductor quantum dots", Phys. Rev. B 72, 035306 (2005).

E. A. Muljarov, T. Takagahara, and R. Zimmermann, "Phonon-induced Exciton Dephasing in Quantum Dot Molecules", Phys. Rev. Lett. 95, 177405 (2005).

S. Yamauchi, K. Komori, I. Morohashi, K. Goshima, T. Sugaya, and T. Takagahara, "Observation of interdot correlation in single pair of electromagnetically coupled quantum dots", Appl. Phys. Lett. 87, 182103 (2005).

A. Tackeuchi, R. Ohtsubo, K. Yamaguchi, M. Murayama, T. Kitamura, T. Kuroda, and T. Takagahara , "Spin relaxation dynamics in highly uniform InAs quantum dots", Appl. Phys. Lett. 84, pp.3576-3578 (2004).

K. Matsuda, T. Saiki, S. Nomura, M. Mihara, Y. Aoyagi, S. V. Nair, and T. Takagahara, "Near-field Optical Mapping of Exciton Wave Functions in a GaAs Quantum Dot", Phys. Rev. Lett. 91, 177401 (2003).

H. Htoon, C. K. Shih and T. Takagahara, "Quantum coherence phenomena in semiconductor quantum dots: quantum interference, decoherence and Rabi oscillation", Chaos, Solitons and Fractals 16, pp. 439-448 (2003).

T. Takagahara, "Theory of Exciton Coherence and Decoherence in Semiconductor Quantum Dots", phys. stat. sol. (b) 234, pp.115-129 (2002).

H. Htoon, T. Takagahara, D. Kulik, O. Baklenov, A. L. Holmes, Jr., and C. K. Shih, " Interplay of Rabi Oscillations and Quantum Interference in Semiconductor Quantum Dots", Phys. Rev. Lett. 88, 087401 (2002).

H. Kamada, H.Gotoh and J. Temmyo, T. Takagahara, H. Ando, "Exciton Rabi Oscillation in Single Quantum Dot", Phys. Rev. Lett. 87, 246401 (2001).

H. Htoon, D. Kulik, O. Baklenov, A. L. Holmes, Jr., T. Takagahara, and C. K. Shih, "Carrier relaxation and quantum decoherence of excited states in self-assembled quantum dots", Phys. Rev. B 63, 241303(R) (2001).

T. Takagahara, "Theory of exciton doublet structures and polarization relaxation in single quantum dots", Phys. Rev. B 62, pp. 16840-16855 (2000).

H. Kamada, T. Takagahara, H. Ando, J. Temmyo, and T. Tamamura, "Quantum interference in photoluminescence excitation processes in a single semiconductor quantum dot'', Phys. Stat. Sol. (a) Vol. 178, pp. 291-296 (2000).

H. Kamada, H. Ando, T. Takagahara, J. Temmyo, T. Tamamura, "Spectroscopies of exciton and biexciton in InGaAs quantum disk'', J. Lumin. 87-89, pp. 46-50 (2000).

T. Takagahara, "Theory of Exciton Fine Structures and Extremely Slow Spin Relaxation in Single Quantum Dots", J. Lumin., Vol. 87-89, pp. 308-311 (2000).

T. Takagahara, "Theory of Exciton Dephasing in Semiconductor Quantum Dots", Phys. Rev. B 60, pp. 2638-2652 (1999).

T. Takagahara, ``Theory of Multi-Exciton States in Semiconductor Nanocrystals'', in ``New Aspects in Optical Properties of Nanostructures'', ed. T. Takagahara (Gordon and Breach, New York, 1999), pp. 281-363.

Xudong Fan, T. Takagahara, J. E. Cunningham and Hailin Wang, ``Pure Dephasing Induced by Exciton-Phonon Interactions in Narrow GaAs Quantum Wells'', Solid State Comm.108, pp. 857-861 (1998).

H. Zhou, A. V. Nurmikko, C. C. Chu, J. Han, R. L. Gunshor and T. Takagahara, "Observation of ``Antibound States'' for Exciton-pairs by Four-wave Mixing Experiments in a Single ZnSe Quantum Well'', Phys. Rev. B 58, R10131-R10134 (1998).

M. Ikezawa, Y. Masumoto, T. Takagahara and Selvakumar V. Nair, "Biexciton and Triexciton States in Quantum Dots in the Weak Confinement Regime'', Phys. Rev. Lett. 79, pp. 3522-3525(1997).

H. Gotoh, H. Ando, T. Takagahara, H. Kamada, A. Chavez-Pirson and J. Temmyo, ``Effects of Dimensionality on Radiative Recombination Lifetime of Excitons in Thin Quantum Boxes of Intermediate Regime between Zero and Two Dimensions '', Jpn. J. Appl. Phys. Part 1, Vol. 36, pp. 4204-4208 (1997).

Selvakumar V. Nair and T. Takagahara, ``Theory of exciton Pair states and their nonlinear optical properties in semiconductor quantum dots'', Phys. Rev. B 55, pp. 5153-5170 (1997).

T. Takagahara, ``Electron-Phonon interactions in semiconductor nanocrystals'', J. Luminescence 70, pp. 129-143 (1996).