Dear Rongyang,
The TruncatedWeight is the sum of the square of the discarded singular values during a truncation. This is the same value used in other DMRG applications.
Best regards, Michele
On 7 Jan 2018, at 08:00, Rongyang Sun sun-rongyang@outlook.com wrote:
Dear ALPS users,
The ALPS MPS code can print 'TruncatedWeight' to estimate the error of the simulation. I have a question:
What is the meaning of this quantity and the relation with the truncation error in traditional DMRG simulation?
For Fig. 5 in Computer Physics Communications, 185(12):3430 – 3440, 2014., the quantity may be summed as the final truncation error after a sweep.
Thanks a lot!
Best regards, Rongyang Sun
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