Problem Set 1 (due 2/21/06)
... triplet->singlet transition, but it need not be, generally speaking. c) resonance fluorescence Relaxation of an excited state by emission of a photon of the same frequency as the excitation frequency. This is more common in atoms than in molecules, which have vibrational relaxation pathways that may ...
... triplet->singlet transition, but it need not be, generally speaking. c) resonance fluorescence Relaxation of an excited state by emission of a photon of the same frequency as the excitation frequency. This is more common in atoms than in molecules, which have vibrational relaxation pathways that may ...
Quantum phase transitions in Kitaev spin models
... Left: Phase diagram. The yellow (red) regions are phases of Chern number 1 (-1). The white regions are phases of Chern number 0. Right: A first-order quantum phase transition occurring along the horizontal dashed line. ...
... Left: Phase diagram. The yellow (red) regions are phases of Chern number 1 (-1). The white regions are phases of Chern number 0. Right: A first-order quantum phase transition occurring along the horizontal dashed line. ...
Phys. Rev. Lett. 108, 197403
... the effective noncollinear hyperfine coupling that was first proposed in Ref. [13] to explain nuclear spin relaxation in self-assembled QDs. Our experiments demonstrate that the nature of resonant DNSP depends drastically on whether the blue (higher energy) or the red (lower energy) Zeeman transitio ...
... the effective noncollinear hyperfine coupling that was first proposed in Ref. [13] to explain nuclear spin relaxation in self-assembled QDs. Our experiments demonstrate that the nature of resonant DNSP depends drastically on whether the blue (higher energy) or the red (lower energy) Zeeman transitio ...
Reflection Symmetry and Energy-Level Ordering in Frustrated Spin
... The spin of M can be found by constructing a trial state being a positive superposition of (shifted) Ising basic states and having a definite value of the spin. Then it will overlap with M. The uniqueness of the relative GS then implies that both states have the same spin. As a result, ...
... The spin of M can be found by constructing a trial state being a positive superposition of (shifted) Ising basic states and having a definite value of the spin. Then it will overlap with M. The uniqueness of the relative GS then implies that both states have the same spin. As a result, ...
Poster PDF (4.4mb)
... [1] J. R. Abo-Shaeer, C. Raman, J. M. Vogels, and W. Ketterle, Science 292, 476 (2001). [2] Y.-J. Lin, R. L. Compton, K. Jimenez-Garcia, J. V. Porto, and I. Spielman, Nature 462, 628 (2009). [3] K. Jimenez-Garcia, L. J. LeBlanc, R. A. Williams, M. C. Beeler, A. R. Perry, and I. B. Spielman, Phys. Re ...
... [1] J. R. Abo-Shaeer, C. Raman, J. M. Vogels, and W. Ketterle, Science 292, 476 (2001). [2] Y.-J. Lin, R. L. Compton, K. Jimenez-Garcia, J. V. Porto, and I. Spielman, Nature 462, 628 (2009). [3] K. Jimenez-Garcia, L. J. LeBlanc, R. A. Williams, M. C. Beeler, A. R. Perry, and I. B. Spielman, Phys. Re ...
Synthesis and Size Dependent Properties of CdSe Quantum Dots
... possible excitations, only those whose spin multiplicity complies with the total spin of the system imposed on section b). The program controls this option with the group under the tag “Configuration Interaction” on the GUI (see Figure 4). In general, we will be interested in obtaining the CI expans ...
... possible excitations, only those whose spin multiplicity complies with the total spin of the system imposed on section b). The program controls this option with the group under the tag “Configuration Interaction” on the GUI (see Figure 4). In general, we will be interested in obtaining the CI expans ...
Nitrogen-vacancy center
The nitrogen-vacancy center (N-V center) is one of numerous point defects in diamond. Its most explored and useful property is photoluminescence, which can be easily detected from an individual N-V center, especially those in the negative charge state (N-V−). Electron spins at N-V centers, localized at atomic scales, can be manipulated at room temperature by applying a magnetic field, electric field, microwave radiation or light, or a combination, resulting in sharp resonances in the intensity and wavelength of the photoluminescence. These resonances can be explained in terms of electron spin related phenomena such as quantum entanglement, spin-orbit interaction and Rabi oscillations, and analysed using advanced quantum optics theory. An individual N-V center can be viewed as a basic unit of a quantum computer, and it has potential applications in novel, more efficient fields of electronics and computational science including quantum cryptography and spintronics.