Resource theory of quantum memories and their faithful verification with minimal assumptions
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 …
transformation from one quantum channel into another one, by means of classically …
Pseudorandom unitaries are neither real nor sparse nor noise-robust
Pseudorandom quantum states (PRSs) and pseudorandom unitaries (PRUs) possess the
dual nature of being efficiently constructible while appearing completely random to any …
dual nature of being efficiently constructible while appearing completely random to any …
Testing the Quantumness of Gravity without Entanglement
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 …
states, how well can U be simulated by local operations and classical communication …
The nonequilibrium cost of accurate information processing
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 …
any information processing system needs an initial supply of resources away from thermal …
Testing the quantum nature of gravity without entanglement
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 …
states, how well can $ U $ be simulated by local operations and classical communication …
Optimal continuous variable quantum teleportation with limited resources
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 …
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
Continuous-variable quantum information, encoded into infinite-dimensional quantum
systems, is a promising platform for the realization of many quantum information protocols …
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
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 …
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 …
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
The spin-coherent-state positive-operator-valued-measure (POVM) is a fundamental
measurement in quantum science, with applications including tomography, metrology …
measurement in quantum science, with applications including tomography, metrology …