TY - JOUR
T1 - A geometrical representation of entanglement
AU - Aslmarand, Shahabeddin M.
AU - Miller, Warner A.
AU - Ahn, Doyeol
AU - Alsing, Paul M.
N1 - Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature.
PY - 2022/3
Y1 - 2022/3
N2 - We introduce a novel geometrical approach to characterize entanglement relations in large quantum systems. Our approach is inspired by Schumacher’s singlet state triangle inequality, which used an entropy-based distance to capture the strange properties of entanglement using geometry-based inequalities. Schumacher uses classical entropy and can only describe the geometry of bipartite states. We extend his approach by using von Neumann entropy to create an entanglement monotone that can be generalized for higher-dimensional systems. We achieve this by utilizing recent definitions for entropic areas, volumes, and higher-dimensional volumes for multipartite quantum systems. This enables us to differentiate systems with high quantum correlation from systems with low quantum correlation and differentiate between different types of multipartite entanglement. It also enable us to describe some of the strange properties of quantum entanglement using simple geometrical inequalities. Our geometrization of entanglement provides new insight into quantum entanglement. Perhaps by constructing well-motivated geometrical structures (e.g., relations among areas, volumes, etc.), a set of trivial geometrical inequalities can reveal some of the complex properties of higher-dimensional entanglement in multipartite systems. We provide numerous illustrative applications of this approach, and in particular to a random sample of a thousand density matrices.
AB - We introduce a novel geometrical approach to characterize entanglement relations in large quantum systems. Our approach is inspired by Schumacher’s singlet state triangle inequality, which used an entropy-based distance to capture the strange properties of entanglement using geometry-based inequalities. Schumacher uses classical entropy and can only describe the geometry of bipartite states. We extend his approach by using von Neumann entropy to create an entanglement monotone that can be generalized for higher-dimensional systems. We achieve this by utilizing recent definitions for entropic areas, volumes, and higher-dimensional volumes for multipartite quantum systems. This enables us to differentiate systems with high quantum correlation from systems with low quantum correlation and differentiate between different types of multipartite entanglement. It also enable us to describe some of the strange properties of quantum entanglement using simple geometrical inequalities. Our geometrization of entanglement provides new insight into quantum entanglement. Perhaps by constructing well-motivated geometrical structures (e.g., relations among areas, volumes, etc.), a set of trivial geometrical inequalities can reveal some of the complex properties of higher-dimensional entanglement in multipartite systems. We provide numerous illustrative applications of this approach, and in particular to a random sample of a thousand density matrices.
UR - http://www.scopus.com/inward/record.url?scp=85126031819&partnerID=8YFLogxK
U2 - 10.1140/epjp/s13360-022-02493-1
DO - 10.1140/epjp/s13360-022-02493-1
M3 - Article
AN - SCOPUS:85126031819
SN - 2190-5444
VL - 137
JO - European Physical Journal Plus
JF - European Physical Journal Plus
IS - 3
M1 - 296
ER -