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quant-ph2008★ 2 cited
On the Geodesic Nature of Wegner's Flow
Yuichi Itto, Sumiyoshi Abe
Wegner's method of flow equations offers a useful tool for diagonalizing a given Hamiltonian and is widely used in various branches of quantum physics. Here, generalizing this meth…
quant-ph2007★ 2 cited
Stationary photon-atom entanglement and flow equation
Yuichi Itto, Sumiyoshi Abe
Stationary photon-atom entanglement is discussed by applying the method of flow equation to the Jaynes-Cummings model. A nonlocal continuous unitary transformation is explicitly co…