From spin chains to real-time thermal field theory using tensor networks

Bañuls, Mari Carmen; Heller, Michal P.; Jansen, Karl; Knaute, Johannes; Svensson, Viktor

doi:10.1103/PhysRevResearch.2.033301

アイテム詳細

登録内容を編集ファイル形式で保存

一時保存へ追加

タグ情報を表示リリース履歴を表示詳細要約

公開

学術論文

From spin chains to real-time thermal field theory using tensor networks

MPS-Authors

/persons/resource/persons60403

Bañuls, Mari Carmen
Theory, Max Planck Institute of Quantum Optics, Max Planck Society;
MCQST - Munich Center for Quantum Science and Technology, External Organizations;

/persons/resource/persons209103

Heller, Michal P.
Gravity, Quantum Fields and Information, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons231238

Knaute, Johannes
Gravity, Quantum Fields and Information, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

/persons/resource/persons231240

Svensson, Viktor
Gravity, Quantum Fields and Information, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

External Resource

There are no locators available

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

フルテキスト (公開)

6102.pdf
(出版社版), 3MB

付随資料 (公開)

There is no public supplementary material available

引用

Bañuls, M. C., Heller, M. P., Jansen, K., Knaute, J., & Svensson, V. (2020). From spin chains to real-time thermal field theory using tensor networks. Physical Review Research, 2:. doi:10.1103/PhysRevResearch.2.033301.

引用: https://hdl.handle.net/21.11116/0000-0008-909C-5

要旨

One of the most interesting directions in theoretical high-energy physics is
understanding dynamical properties of collective states of quantum field
theories. The most elementary tool in this quest are retarded equilibrium
correlators governing the linear response theory. In the present letter we
examine tensor networks as a way of determining them in a fully ab initio way
in a class of (1+1)-dimensional quantum field theories arising as infra-red
descriptions of quantum Ising chains. We show that, complemented with signal
analysis using the Prony method, tensor networks calculations for intermediate
times provide a powerful way to explore the structure of singularities of the
correlator in the complex frequency plane.