On the ground state of a free massless (pseudo)scalar field in two dimensions
On the ground state of a free massless (pseudo)scalar field in two dimensions
复制标题
二维自由无质量（伪）标量场的基态
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
A. Ivanov
中科院分区：
文献类型：
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作者：
M. Faber;A. Ivanov
研究了1+1维时空中自由无质量(伪)标量场的基态。我们认为在没有红外发散的自由无质量(伪)标量场的量子场论中(EUR。太棒了。J.C24,653(2002))基态可以用基准场和集体零模的波函数的张量积来表示，描述自由无质量(伪)标量场的“质心”的运动。我们证明了在(Phys.Lett)中得到的无质量Thirring模型基态BCS波函数的玻色化形式。B563,231(2003))描述了自由无质量(伪)标量场的基态。
We investigate the ground state of a free massless (pseudo)scalar field in 1+1-dimensional space-time. We argue that in the quantum field theory of a free massless (pseudo)scalar field without infrared divergences (Eur. Phys. J. C24, 653 (2002)) the ground state can be represented by a tensor product of wave functions of the fiducial vacuum and of the collective zero-mode, describing the motion of the ``center of mass' of a free massless (pseudo)scalar field. We show that the bosonized version of the BCS wave function of the ground state of the massless Thirring model obtained in (Phys.Lett. B563, 231 (2003)) describes the ground state of the free massless (pseudo)scalar field.