A highly optimized vectorized code for Monte Carlo simulations of SU(3) lattice gauge theories

New methods are introduced for improving the performance of the vectorized Monte Carlo SU(3) lattice gauge theory algorithm using the CDC CYBER 205. Structure, algorithm and programming considerations are discussed. The performance achieved for a 16(4) lattice on a 2-pipe system may be phrased in terms of the link update time or overall MFLOPS rates. For 32-bit arithmetic, it is 36.3 microsecond/link for 8 hits per iteration (40.9 microsecond for 10 hits) or 101.5 MFLOPS

Algorithm for Computing Excited States in Quantum Theory

Monte Carlo techniques have been widely employed in statistical physics as well as in quantum theory in the Lagrangian formulation. However, in the conventional approach, it is extremely difficult to compute the excited states. Here we present a different algorithm: the Monte Carlo Hamiltonian method, designed to overcome the difficulties of the conventional approach. As a new example, application to the Klein-Gordon field theory is shown.Comment: 3 pages, uses Latex and aipproc.cl

The intersection of identity construction & learning approach : the experience of college students with psychological disorders

College for many adults represents a time for increasing independence, autonomy, and self-exploration. Yet the college experience may also be a time when students discover the presence of a psychological disorder, or navigate how to grapple with an existing disorder in the new and unfamiliar environment of college. An increasing number of students with such disorders are enrolling and participating in higher education yet current literature is often insufficient to adequately guide and inform postsecondary institution personnel regarding this complex student population (Beamish, 2005). Therefore, this phenomenological study aimed to discover the lived experience of a small sample of students with psychological disorders at one public university in the Western United States. Participants\u27 reports of identity processes and classroom learning experiences were investigated through the combined lens of ldentity Theory and the Seven Vectors of Student Development. Study findings suggest (1) there is a pervasive yet varying effect of stigma on participants\u27 identity and impression management behaviors, (2) crises resolution pertaining to seeking help and forming relationships associates with identity development, (3) student-role prominence may influence help-· seeking behavior offering possible implications for student college persistence, (4) reconceptualizing psychological disorders may contribute to more positive self-concepts, (5) sympathetic others play a part in fostering a positive classroom emotional climate and relationship trust and building, and finally, (6) stigma (and concomitant inclinations to prove oneself) prompt participant classroom participation yet outward signs of professor and classmate discrimination stifle participant classroom participation

Monte Carlo Hamiltonian of lattice gauge theory

We discuss how the concept of the Monte Carlo Hamiltonian can be applied to lattice gauge theories.Comment: "Non-Perturbative Quantum Field Theory: Lattice and Beyond", Guangzhou, China 200