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Loop Quantum Brans-Dicke Theory
Xiangdong Zhang, Yongge Ma
The loop quantization of Brans-Dicke theory (with coupling parameter ) is studied. In the geometry-dynamical formalism, the canonical structure and constraint algebra of…
Nonperturbative Loop Quantization of Scalar-Tensor Theories of Gravity
Xiangdong Zhang, Yongge Ma
The Hamiltonian formulation of scalar-tensor theories of gravity is derived from their Lagrangian formulation by Hamiltonian analysis. The Hamiltonian formalism marks off two secto…
Loop quantum theories
Xiangdong Zhang, Yongge Ma
As modified gravity theories, the 4-dimensional metric theories are cast into connection dynamical formalism with real -connections as configuration variables. This f…
Extension of loop quantum gravity to theories
Xiangdong Zhang, Yongge Ma
The 4-dimensional metric theories of gravity are cast into connection-dynamical formalism with real $\SU(2)$-connections as configuration variables. Through this formalism,…