Resource theory of quantum memories and their faithful verification with minimal assumptions

D Rosset, F Buscemi, YC Liang - Physical Review X, 2018 - APS
We provide a complete set of game-theoretic conditions equivalent to the existence of a
transformation from one quantum channel into another one, by means of classically …

Pseudorandom unitaries are neither real nor sparse nor noise-robust

T Haug, K Bharti, DE Koh - arxiv preprint arxiv:2306.11677, 2023 - arxiv.org
Pseudorandom quantum states (PRSs) and pseudorandom unitaries (PRUs) possess the
dual nature of being efficiently constructible while appearing completely random to any …

Testing the Quantumness of Gravity without Entanglement

L Lami, JS Pedernales, MB Plenio - Physical Review X, 2024 - APS
Given a unitary evolution U on a multipartite quantum system and an ensemble of initial
states, how well can U be simulated by local operations and classical communication …

The nonequilibrium cost of accurate information processing

G Chiribella, F Meng, R Renner, MH Yung - Nature Communications, 2022 - nature.com
Accurate information processing is crucial both in technology and in nature. To achieve it,
any information processing system needs an initial supply of resources away from thermal …

Testing the quantum nature of gravity without entanglement

L Lami, JS Pedernales, MB Plenio - arxiv preprint arxiv:2302.03075, 2023 - arxiv.org
Given a unitary evolution $ U $ on a multi-partite quantum system and an ensemble of initial
states, how well can $ U $ be simulated by local operations and classical communication …

Optimal continuous variable quantum teleportation with limited resources

P Liuzzo-Scorpo, A Mari, V Giovannetti, G Adesso - Physical Review Letters, 2017 - APS
Given a certain amount of entanglement available as a resource, what is the most efficient
way to accomplish a quantum task? We address this question in the relevant case of …

Efficient verification of continuous-variable quantum states and devices without assuming identical and independent operations

YD Wu, G Bai, G Chiribella, N Liu - Physical Review Letters, 2021 - APS
Continuous-variable quantum information, encoded into infinite-dimensional quantum
systems, is a promising platform for the realization of many quantum information protocols …

Complex conjugation supermap of unitary quantum maps and its universal implementation protocol

J Miyazaki, A Soeda, M Murao - Physical Review Research, 2019 - APS
A complex conjugation of unitary quantum map is a second-order map (supermap) that
maps a unitary operator U to its complex conjugate U*. First, we present a deterministic …

Efficient quantum algorithms for stabilizer entropies

T Haug, S Lee, MS Kim - Physical Review Letters, 2024 - APS
Stabilizer entropies (SEs) are measures of nonstabilizerness or “magic” that quantify the
degree to which a state is described by stabilizers. SEs are especially interesting due to their …

Optimal pure-state qubit tomography via sequential weak measurements

E Shojaee, CS Jackson, CA Riofrío, A Kalev… - Physical review …, 2018 - APS
The spin-coherent-state positive-operator-valued-measure (POVM) is a fundamental
measurement in quantum science, with applications including tomography, metrology …