Not available / text

Thesis (Ph. D.)--University of Texas at Austin, 2006. / Vita. Includes bibliographical references.

Not available / text

Thesis (Ph. D.)--University of Texas at Austin, 2008. / Vita. Includes bibliographical references.

Ph.D. (Physics) / Please refer to full text to view abstract

Philosophiae Doctor - PhD / This thesis describes research work undertaken to study neutron pairing correlations in 136Ba via the 138Ba(p, t) pair transfer reaction and to perform high-precision spectroscopy of low-lying states in 136Cs using the 138Ba(d, ) reaction. The aim of this project was to provide useful spectroscopic information relevant for matrix element calculations of 136Xe neutrinoless double beta decay. This work is relevant because neutrinoless double beta decays are standard-model-forbidden lepton number violating processes, which if observed, would establish the Majorana nature of the neutrinos and also determine the absolute mass scale of the light Majorana neutrinos. Our experiments show a signi cant fragmentation of the two-neutron transfer (p, t) strength to excited 0+ states in 136Ba, which could signi cantly affect future matrix element calculations. Additionally we obtain information on 65 new states in 136Cs observed in this work. It is anticipated that these new information will play a vital role in improving the precision of calculated matrix elements for 136Xe double beta decays.

Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Physics, 1979. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE. / Includes bibliographical references. / Ph.D.

Chung, Chun Kit = 超低溫相互作用費米原子中配對的探究 / 鍾俊傑. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2010. / Includes bibliographical references (leaves 81-88). / Abstracts in English and Chinese. / Chung, Chun Kit = Chao di wen xiang hu zuo yong fei mi yuan zi zhong pei dui de tan jiu / Zhong Junjie. / Chapter 1 --- Introduction --- p.1 / Chapter 2 --- Review on BCS theory --- p.4 / Chapter 2.1 --- BCS theory in uniform systems --- p.4 / Chapter 2.1.1 --- Hamiltonian and ground state solutions --- p.4 / Chapter 2.1.2 --- Choice of interaction potential --- p.7 / Chapter 2.1.3 --- Uniform atomic gas at T = 0 --- p.9 / Chapter 2.2 --- Self-consistent field method --- p.13 / Chapter 2.2.1 --- Population imbalanced systems --- p.17 / Chapter 2.3 --- Description of BCS states at finite temperatures --- p.22 / Chapter 3 --- Bipartite quantum entanglement in BCS states --- p.25 / Chapter 3.1 --- Mixed state bipartite quantum entanglement --- p.26 / Chapter 3.1.1 --- PPT criterion --- p.27 / Chapter 3.1.2 --- Negativity of p --- p.28 / Chapter 3.1.3 --- Entanglement witness --- p.30 / Chapter 3.1.4 --- Two-particle density matrix and two-body negativity --- p.30 / Chapter 3.2 --- Opposite spin states as subsystems --- p.31 / Chapter 3.2.1 --- Structure of and the negativity --- p.32 / Chapter 3.2.2 --- Relationship between the negativity and the order pa- rameter --- p.33 / Chapter 3.2.3 --- Distribution of negative eigenvalues of --- p.34 / Chapter 3.2.4 --- Constructing entanglement witness operator --- p.35 / Chapter 3.2.5 --- Remark: Same spin state as subsystems --- p.37 / Chapter 3.3 --- Momentum states as subsystems --- p.40 / Chapter 3.3.1 --- A and B as opposite momentum states --- p.41 / Chapter 3.3.2 --- A and B as different momentum states k and k' with k≠± k' --- p.43 / Chapter 3.3.3 --- A and B as the same momentum state --- p.44 / Chapter 3.4 --- Summary --- p.45 / Chapter 4 --- Radio-frequency spectroscopy --- p.47 / Chapter 4.1 --- The model Hamiltonian and dynamical equations --- p.49 / Chapter 4.1.1 --- Time-dependent variational method --- p.50 / Chapter 4.1.2 --- Time-dependent Bogoliubov-de Gennes equations --- p.51 / Chapter 4.2 --- Short-time dynamics --- p.53 / Chapter 4.2.1 --- Eigenvectors and Eigenvalues of C --- p.54 / Chapter 4.2.2 --- Build up of particle number density n3 and order param- eter Δ23 --- p.57 / Chapter 4.3 --- Summary --- p.61 / Chapter 5 --- Pairing in three-component systems --- p.63 / Chapter 5.1 --- The mean-field Hamiltonian --- p.64 / Chapter 5.2 --- Symmetric systems --- p.67 / Chapter 5.2.1 --- Quasiparticle spectra --- p.68 / Chapter 5.2.2 --- "Occupation number, condensation amplitude, and co- herence amplitude" --- p.70 / Chapter 5.2.3 --- Strengths of Ω --- p.71 / Chapter 5.3 --- Pairing in asymmetric systems --- p.73 / Chapter 5.3.1 --- Quasiparticle spectra and mean-field solutions --- p.73 / Chapter 5.3.2 --- Effects of Ωij --- p.74 / Chapter 5.4 --- Summary --- p.76 / Chapter 6 --- Conclusion and outlook --- p.79 / Bibliography --- p.81 / Chapter A --- Regularization techniques --- p.89 / Chapter B --- Wick's theorem --- p.91 / Chapter C --- Analytic solutions to three-component symmetric systems --- p.94

Thesis (Ph. D.)--Kent State University, 2007. / Title from PDF t.p. (viewed July 15, 2008). Advisor: John W. Watson. Includes bibliographical references (p. 125-129).

Thesis (Ph. D.)--University of Washington, 2003. / Vita. Includes bibliographical references (leaves 86-90).