Experimental progress on quantum coherence: detection, quantification, and manipulation

KD Wu, A Streltsov, B Regula, GY Xiang… - Advanced Quantum …, 2021 - Wiley Online Library
Quantum coherence is a fundamental property of quantum systems, separating quantum
from classical physics. Recently, there has been significant interest in the characterization of …

Operational resource theory of imaginarity

KD Wu, TV Kondra, S Rana, CM Scandolo, GY Xiang… - Physical Review Letters, 2021 - APS
Wave-particle duality is one of the basic features of quantum mechanics, giving rise to the
use of complex numbers in describing states of quantum systems and their dynamics and …

Asymmetry and coherence weight of quantum states

K Bu, N Anand, U Singh - Physical Review A, 2018 - APS
The asymmetry of quantum states is an important resource in quantum information
processing tasks such as quantum metrology and quantum communication. In this paper, we …

Nonasymptotic assisted distillation of quantum coherence

B Regula, L Lami, A Streltsov - Physical Review A, 2018 - APS
We characterize the operational task of environment-assisted distillation of quantum
coherence under different sets of free operations when only a finite supply of copies of a …

Direct estimation of quantum coherence by collective measurements

Y Yuan, Z Hou, JF Tang, A Streltsov, GY Xiang… - npj Quantum …, 2020 - nature.com
The recently established resource theory of quantum coherence allows for a quantitative
understanding of the superposition principle, with applications reaching from quantum …

Skew information-based coherence generating power of quantum channels

Z Wu, L Zhang, SM Fei, J Wang - Quantum Information Processing, 2022 - Springer
We study the ability of a quantum channel to generate quantum coherence when it applies
to incoherent states. We define the measure of coherence generating power (CGP) for a …

Quantum coherence and state conversion: theory and experiment

KD Wu, T Theurer, GY Xiang, CF Li, GC Guo… - npj Quantum …, 2020 - nature.com
The resource theory of coherence studies the operational value of superpositions in
quantum technologies. A key question in this theory concerns the efficiency of manipulation …

Quasi-probability information in a coupled two-qubit system interacting non-linearly with a coherent cavity under intrinsic decoherence

ABA Mohamed, H Eleuch - Scientific Reports, 2020 - nature.com
We explore the phase space quantum effects, quantum coherence and non-classicality, for
two coupled identical qubits with intrinsic decoherence. The two qubits are in a nonlinear …

Detecting non-Markovianity via quantified coherence: theory and experiments

KD Wu, Z Hou, GY Xiang, CF Li, GC Guo… - npj Quantum …, 2020 - nature.com
The dynamics of open quantum systems and manipulation of quantum resources are both of
fundamental interest in quantum physics. Here, we investigate the relation between …

Resource theory of imaginarity: New distributed scenarios

KD Wu, TV Kondra, CM Scandolo, S Rana… - arXiv preprint arXiv …, 2023 - arxiv.org
The resource theory of imaginarity studies the operational value of imaginary parts in
quantum states, operations, and measurements. Here we introduce and study the distillation …