منابع مشابه
+1 Sector of 3+1 Gravity
The rank–1 sector of classical Ashtekar gravity is considered, motivated by the degeneracy of the metric along the Wilson lines in quantum loop states. It is found that the lines behave like 1+1 dimensional spacetimes with a pair of massless complex fields propagating along them. The inclusion of matter and extension to supergravity are also considered. In Ashtekar’s Hamiltonian formulation of ...
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متن کاملab initio study of conformational and configurational properties of 1, 3- diazacyclohepta-1, 2-diene and 1, 3-diazacycloocta-1, 2-diene
ab initio calculations at hf/6-31g* level of theory for geometry optimization and mp2/6-31g*//hf/6-31g* for a single point total energy calculation are reported for the importantenergy-minimum conformations and transition-state geometries of 1, 3-diazacyclohepta-1, 2-diene (2) and 1, 3-diazacycloocta-1, 2-diene (3). the c2 symmetric twist-chair (2-tc)conformation of 2 is calculated to be 7.4 kj...
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ژورنال
عنوان ژورنال: Classical and Quantum Gravity
سال: 1996
ISSN: 0264-9381,1361-6382
DOI: 10.1088/0264-9381/13/8/003