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

KD Wu, A Streltsov, B Regula, GY **ang… - 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 …

No second law of entanglement manipulation after all

L Lami, B Regula - Nature Physics, 2023 - nature.com
Many fruitful analogies have emerged between the theories of quantum entanglement and
thermodynamics, motivating the pursuit of an axiomatic description of entanglement akin to …

Fundamental limitations on distillation of quantum channel resources

B Regula, R Takagi - Nature Communications, 2021 - nature.com
Quantum channels underlie the dynamics of quantum systems, but in many practical settings
it is the channels themselves that require processing. We establish universal limitations on …

Virtual quantum resource distillation

X Yuan, B Regula, R Takagi, M Gu - Physical Review Letters, 2024 - APS
Distillation, or purification, is central to the practical use of quantum resources in noisy
settings often encountered in quantum communication and computation. Conventionally …

Arbitrary amplification of quantum coherence in asymptotic and catalytic transformation

N Shiraishi, R Takagi - Physical Review Letters, 2024 - APS
Quantum coherence is one of the fundamental aspects distinguishing classical and quantum
theories. Coherence between different energy eigenstates is particularly important, as it …

Fisher information universally identifies quantum resources

KC Tan, V Narasimhachar, B Regula - Physical Review Letters, 2021 - APS
We show that both the classical as well as the quantum definitions of the Fisher information
faithfully identify resourceful quantum states in general quantum resource theories, in the …

Every quantum helps: Operational advantage of quantum resources beyond convexity

K Kuroiwa, R Takagi, G Adesso, H Yamasaki - Physical Review Letters, 2024 - APS
Identifying what quantum-mechanical properties are useful to untap a superior performance
in quantum technologies is a pivotal question. Quantum resource theories provide a unified …

Framework for resource quantification in infinite-dimensional general probabilistic theories

L Lami, B Regula, R Takagi, G Ferrari - Physical Review A, 2021 - APS
Resource theories provide a general framework for the characterization of properties of
physical systems in quantum mechanics and beyond. Here we introduce methods for the …

Distillable entanglement under dually non-entangling operations

L Lami, B Regula - Nature Communications, 2024 - nature.com
Computing the exact rate at which entanglement can be distilled from noisy quantum states
is one of the longest-standing questions in quantum information. We give an exact solution …

Generalized Quantum Stein's Lemma and Second Law of Quantum Resource Theories

M Hayashi, H Yamasaki - arxiv preprint arxiv:2408.02722, 2024 - arxiv.org
The second law of thermodynamics is the cornerstone of physics, characterizing the
convertibility between thermodynamic states through a single function, entropy. Given the …