Properties of Atoms in High External Fields (Physics)
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{'SignBlockName': 'Charles N. Brown', 'PO_EMAI': None, 'PO_PHON': None}
This grant is to support studies of quantum systems that                display regular and irregular classical trajectories with the aid               of various semiclassical methods, some traditional and some very                recently developed.  In the first year, attention will be focused               on highly excited atoms in strong external fields.  At low                      energies and weak fields, these systems show quasiperiodic                      trajectories, and semiclassical energies and wavefunctions can be               calculated by quantization of action variables.  For high                       energies or strong fields, the trajectories are chaotic and                     familiar methods  cannot be used.  A theory is being developed                  that shows that orderly fluctuations in transition amplitudes are               associated with closed orbits of such systems.
{'FirstName': 'John', 'LastName': 'Delos', 'PI_MID_INIT': 'B', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'John B Delos', 'EmailAddress': 'jbdelo@wm.edu', 'NSF_ID': '000326481', 'StartDate': '07/01/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
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[{'Code': '1245', 'Text': 'THEORETICAL PHYSICS'}, {'Code': '1954', 'Text': 'QUANTUM CALCULATIONS'}, {'Code': '9120', 'Text': 'CROSS-DIRECTORATE PROGRAMS'}]
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