Quantum metrology provides a route to overcome practical limits in sensing devices. It holds
particular relevance to biology, where sensitivity and resolution constraints restrict …

Quantum parameter estimation promises a high-precision measurement in theory; however,
how to design the optimal scheme in a specific scenario, especially under a practical …

In traditional quantum metrology protocols, the initial multipartite entangled pure quantum
probes are considered to be isolated, ie, free of quantum many-body effects. Here, we study …

Quantum repeaters pave the way for long-distance quantum communications and quantum
Internet, and the idea of quantum repeaters is based on entanglement swapping which …

We study the quantum Fisher information (QFI) of W states in the basic decoherence
channels. We show that, as decoherence starts and increases, under i) depolarizing, QFI …

Entanglement is crucial for realizing quantum advantages in metrology. However,
entanglement has been outcast by discord in order to capture the worst-case sensitivity in …

In this paper, we explore the dynamics of nonlocal correlations in a two-qubit system, that is,
first prepared in a Gisin state and then interacts with a bosonic non-Markovian environment …

Quantifying Entanglement is the key ingredient for the upcoming quantum information
technology. Entanglement is hard to grasp, however, which brings about incomplete, indirect …

Entanglement is at the heart of quantum technologies such as quantum information and
quantum metrology. Providing larger quantum Fisher information (QFI), entangled systems …

We investigate two quantum communication protocols of dense coding and teleportation
based on two coupled quantum dot molecules under intrinsic decoherence, tunneling rates …