U(N)的广义欧拉角参数化及其在SU(N)陪集体积测度中的应用
Generalized Euler Angle Parameterization for U(N) with Applications to SU(N) Coset Volume Measures
摘要:
在以前的论文(math-ph/0205016)中,给出了SU(N)的欧拉角参数化。在这里,我们提出了一个广义欧拉角参数化的U(N)。同时给出了U(N)、CP(N)以及其他SU(N)和U(N)陪集的体积计算公式。此外,还导出了N维密度矩阵在此参数化下的混合态乘积测度和纯态乘积测度。
英文摘要:
In a previous paper (math-ph/0205016) an Euler angle parameterization for SU(N) was given. Here we present a generalized Euler angle parameterization for U(N). The formula for the calculation of the volume for U(N), CP(N) as well as other SU(N) and U(N) cosets will also be given. In addition, the mixed and pure state product measures for N-dimensional density matrices under this parameterization will also be derived.
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