ELFT HÍRADÓ

[Edina Szirmai <eszirmai AT phy.bme.hu>]

                                MEGHÍVÓ

         az MTA-BME "Egzotikus Kvantum Fázisok"
          kutatócsoport következő szemináriumára


                              Legeza Örs
                    (Wigner FK, SZFI, Budapest)

Tensor product factorization and entanglement properties
             in models with long range interactions


Kivonat:

Hierarchical Tucker tensor (HT) format and Tensor Trains (TT) have
been introduced recently for low rank tensor product approximation.
TT representation, also known as Matrix Product States (MPS), and
HT representation, apparent in tensor network states (TNS), have
been used in quantum physics for several years. Hierarchical tensor
decompositions are based on subspace approximation by extending
Tucker decomposition into a multilevel framework. Therefore,
they inherit the favorable properties of Tucker tensors, i.e., they
offer a stable and robust approximation, but still enabling low
order scaling with respect to the dimensions. For many high
dimensional problems, hard to treat so far, this approach
may offer a novel strategy to circumvent the curse of dimensionality.
In this contribution, we will present recent results on the
entanglement properties, which is in fact the key ingredient
of such methods, for various strongly correlated quantum many
body systems with long range interactions.



Az előadás helye:  BME F III. épület, mfsz, szemináriumi szoba.
Ideje: 2015. május 18. hétfő, 14:15.


Minden érdeklődőt szeretettel várunk!

                                     Szirmai Edina




-- 
Edina Szirmai
Department of Theoretical Physics,
Budapest University of Technology and Economics
Budafoki ut 8.
Budapest, Hungary
Tel:(+36-1) 463-4107
Fax:(+36-1) 463-3567
www.phy.bme.hu/~eszirmai