One-Dimensional Many Boson System.III : Unitary Transformation and Exactly Dressed Bose Particle
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概要
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A unitary operator, which transforms free states into the exact eigenstates for a one-dimensional many boson system with repulsive delta-function potential, is explicitly constructed. By the unitary operator, original bare creation and annihilation operators are transformed into new operators which are shown to create or annihilate the exactly dressed bosons with the interaction cloud. The total Hamiltonian, total number and total momentum in the system are expressed in the diagonalized form in terms of the dressed operators. it is shown that the exact ground state is the condensed state of all exactly dressed bosons with zero momentum.
- 1981-06-25
著者
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Kebukawa Takeji
Department Of Physics College Of General Education Osaka University
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Sasaki Shosuke
Department Of Physics College Of General Education Osaka University
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SASAKI Shosuke
Department of Physics, College of Genaral Education Osaka University
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