Quantum information theory is built upon the realisation that quantum resources like
coherence and entanglement can be exploited for novel or enhanced ways of transmitting …

In order to witness multipartite correlations beyond pairwise entanglement, spin-squeezing
parameters are analytically calculated for a spin ensemble in a collective initial state under …

The study of quantum many-body physics in Liouvillian open quantum systems becomes
increasingly important with the recent progress in experimental control on dissipative …

Reconstructing a system Hamiltonian through measurements on its eigenstates is an
important inverse problem in quantum physics. Recently, it was shown that generic many …

Deciding if a given family of quantum states is topologically ordered is an important but
nontrivial problem in condensed matter physics and quantum information theory. We derive …

A special feature of the ground state in a topologically ordered phase is the existence of
large-scale correlations depending only on the topology of the regions. These correlations …

We propose an information-theoretic framework to quantify multipartite correlations in
classical and quantum systems, answering questions such as what is the amount of seven …

We study analytically the dynamic behaviours of quantum correlation measured by a
quantum discord between two uncoupled qubits, which are immersed in a common Ohmic …

Traditional quantum physics solves ground states for a given Hamiltonian, while quantum
information science asks for the existence and construction of certain Hamiltonians for given …

Local Hamiltonians arise naturally in physical systems. Despite their seemingly'simple'local
structures, exotic features such as non-local correlations and topological orders exhibit in …