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
---- Comp-phys-alps-users Mailing List for the ALPS Project http://alps.comp-phys.org/ <http://alps.comp-phys.org/>
List info: https://lists.phys.ethz.ch//listinfo/comp-phys-alps-users <https://lists.phys.ethz.ch//listinfo/comp-phys-alps-users> Archive: https://lists.phys.ethz.ch//pipermail/comp-phys-alps-users <https://lists.phys.ethz.ch//pipermail/comp-phys-alps-users>
Unsubscribe by writing a mail to comp-phys-alps-users-leave@lists.phys.ethz.ch <mailto:comp-phys-alps-users-leave@lists.phys.ethz.ch>.