This course is a continuation of PEP 554. Topics include: principles of quantum dynamics, time-dependent perturbation theory, scattering theory, the density matrix, quantization of the electromagnetic field, interaction of photons with atoms and non-relativistic particles, identical particles, and second quantization for many-body systems.
This course explores the quantum mechanical aspects of the theory of electromagnetic radiation and its interaction with matter. Topics covered include Einstein’s theory of emission and absorption, Planck’s law, quantum theory of light-matter interaction, classical fluctuation theory, quantized radiation field, photon quantum statistics, squeezing, and nonlinear interactions.
Offered in alternate years.
Typical text: Loudon, Quantum Theory of Light.
Research & Education
Education
Ph.D. in Theoretical Physics (1998), Imperial College London, England, UK
Research
My research interests are in quantum information science and quantum optics including:
Entanglement and decoherence of quantum nanodevices such as quantum dots and superconducting qubits
Continuous quantum measurement and quantum feedback control
Entanglement and its applications in quantum metrology and precision detection technology
Quantum coherence dynamics of atomic, molecular and optical systems
Theoretical modeling and simulation of complex quantum systems
Non-Markovian quantum open systems and quantum trajectories
Quantum phase transition, topological order and quantum topological computation
Experience & Service
Professional Service
OSA Conference Program Chair: Workshop on Entanglement and Quantum Decoherence (EQD), January 28-30, Nara, Japan
Referee for Science, Nature Physics, PRL, PRA, PRB etc.
Achievements & Professional Societies
Grants, Contracts & Funds
PI, NSF grant (Funded since 2008), Theory of Quantum Dynamics of AMO Systems
PI, DARPA grant (Funded since 2009)
Professional Societies
American Physical Society (APS), member
Optical Society of America (OSA), member
Selected Publications
Journals
T. Yu and J. H. Eberly. "Entanglement Evolution in a Non-Markovian Environment ", Optics Communications (in press) 2009.
B. Corn and T. Yu. "Modulated Entanglement Evolution Via Correlated Noises", Quantum Information Processing 8, 565 (2009).
T. Yu and J. H. Eberly. "Sudden Death of Entanglement", Science 323, 598 (2009), 598 .
C. H. Chou, T. Yu, and B. L. Hu. " Exact master equation and quantum decoherence of two coupled harmonic oscillators in a general environment", Phys. Rev. E 77, 011112 (2008).
J. H. Eberly and T. Yu. "The end of an entanglement", Science 316, 555 (2007).
T. Yu and J. H. Eberly. "Quantum open system theory: Bipartite aspects", Phys. Rev. Lett. 97, 140403 (2006).
T. Yu and J. H. Eberly. "Sudden death of entanglement: Classical noise effects", Optics Communications 264, 393 (2006).
T. Yu. "Non-Markovian quantum trajectories versus master equations: Finite temperature heat bath", Phys. Rev. A 69, 062107 (2004).
W. T. Strunz and T. Yu. "Convolutionless Non-Markovian master equations and quantum trajectories: Brownian motion", Phys. Rev. A 69, 052115 (2004).
T. Yu and J. H. Eberly. "Finite-time disentanglement via spontaneous emission", Phys. Rev. Lett. 93, 140404 (2004).
T. Yu and J. H. Eberly. "Qubits disentanglement via dephasing", Phys. Rev. B 68, 165322 (2003).
T. Yu and J. H. Eberly. "Phonon decoherence of quantum entanglement: Robust and fragile states", Phys. Rev. B 66, 193306 (2002).
T. Yu, L. Diosi, N. Gisin and W. T. Strunz. "Non-Markovian quantum state diffusion: Perturbative approach", Phys. Rev. A 60, 91 (1999).
W. T. Strunz, L. Diosi, N. Gisin, T. Yu. "Quantum Trajectories for Brownnian Motion", Phys. Rev. Lett. 83, 4909(1999).
J.J. Halliwell and T. Yu. "Alternative derivation of Hu-Paz-Zhang master equation of quantum Brownian motion", Phys. Rev. D 52, 1103 (1996).
