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 …

Quantifying quantum speedups: Improved classical simulation from tighter magic monotones

JR Seddon, B Regula, H Pashayan, Y Ouyang… - PRX Quantum, 2021 - APS
Consumption of magic states promotes the stabilizer model of computation to universal
quantum computation. Here, we propose three different classical algorithms for simulating …

Reversibility of quantum resources through probabilistic protocols

B Regula, L Lami - Nature Communications, 2024 - nature.com
Among the most fundamental questions in the manipulation of quantum resources such as
entanglement is the possibility of reversibly transforming all resource states. The key …

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 …

No-go theorems for quantum resource purification

K Fang, ZW Liu - Physical Review Letters, 2020 - APS
The manipulation of quantum “resources” such as entanglement, coherence, and magic
states lies at the heart of quantum science and technology, empowering potential …

Virtual quantum resource distillation: General framework and applications

R Takagi, X Yuan, B Regula, M Gu - Physical Review A, 2024 - APS
We develop the general framework of virtual resource distillation, an alternative distillation
strategy proposed in Phys. Rev. Lett. 132, 050203 (2024) 10.1103/PhysRevLett …

Probabilistic transformations of quantum resources

B Regula - Physical Review Letters, 2022 - APS
The difficulty in manipulating quantum resources deterministically often necessitates the use
of probabilistic protocols, but the characterization of their capabilities and limitations has …

Resource theory of imaginarity: Quantification and state conversion

KD Wu, TV Kondra, S Rana, CM Scandolo, GY Xiang… - Physical Review A, 2021 - APS
Complex numbers are widely used in both classical and quantum physics and are
indispensable components for describing quantum systems and their dynamical behavior …

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 …

Fundamental limits on correlated catalytic state transformations

R Rubboli, M Tomamichel - Physical Review Letters, 2022 - APS
Determining whether a given state can be transformed into a target state using free
operations is one of the fundamental questions in the study of resource theories. Free …