Improved tensor-trick algorithm: application to helium trimer

✍ Scribed by V. Roudnev; S. Yakovlev

• Book ID: 104110719
• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 46 KB
• Volume: 126
• Category: Article
• ISSN: 0010-4655
• DOI: 10.1016/s0010-4655(00)00002-3

✦ Synopsis

Computer time saving modification of the tensor-trick algorithm is proposed. The number of operations per step of the algorithm is reduced from O(N 2

x n 2 ) to O(N x n 2 ). The technique is applied to calculation of ground and excited states of Helium trimer.