Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"symmetry principles"”.
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Symmetry principles in the physics of crystalline interfaces
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1982.
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Symmetry principles in selected problems of field theory
Thesis. 1977. Ph.D.--Massachusetts Institute of Technology. Dept. of Physics.
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Introduction to supersymmetry
… can be explained by a common underlying theory. Symmetry principles, both global and local, play an important role in this unification programme. Global symmetries often account for approximate regularities we observe in nature - local or gauge symmetries are understood as basic symmetries which …
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Fluid dynamics in action
… We develop the variational formulation based on symmetry principles defined on such fluid space-time. Through a prescribed correspondence, the dynamical fields are mapped to the standard fluid variables, such as temperature, chemical potential and velocity. This allows to recover the standard …
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Modeling Compact Objects with Effective Field Theory
… which one can derive the effective theory from symmetry principles. To massive spinning extended objects, we have added electromagnetic charge and the finite-size structure including dissipation, such that we describe charged spinning compact objects, the most general compact object allowed in a …
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Perturbations and symmetry in gravitational theories : wormholes, wave dynamics, and quantum effects in rotating spacetimes.
This dissertation develops a symmetry-centered framework for gravitational perturbation theory, applying it to linearized gravity and horizonless rotating space-times. The central thesis is that gauge invariance and geometric symmetry provide a unifying language for identifying physical degrees of …
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Generalized phononic networks : of length scales, symmetry breaking and (non) locality : "controlling complexity through simplicity"
… this thesis, we utilize a combination of global symmetry principles, adopted from group theory and the theory of representations, together with conservation principles and broken symmetry concepts to formulate our generalized design framework. This framework allows us to exactly treat the vector …
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Collective hydrodynamics of soft microparticles in quasi-two-dimensional confinement
… we consider larger clusters of discs. We provide symmetry principles for the a priori construction of "flowing crystals": configurations of particles that maintain their relative positions as they are carried by the flow. The crystalline states generalize the two-body bound state to more complex …