12 papers
Reliability of asymptotic work extraction
Kaito Watanabe, Bartosz Regula, Marco Tomamichel +1
Extracting work from quantum states is a fundamental task in quantum thermodynamics. Previous studies have primarily focused on determining the best achievable rate of work extract…
Universal quantum resource distillation via composite generalised quantum Stein's lemma
Ludovico Lami, Bartosz Regula, Ryuji Takagi
The performance of quantum resource manipulation protocols, including key examples such as distillation of quantum entanglement, is measured in terms of the rate at which desired t…
Rethinking quantum smooth entropies: Tight one-shot analysis of quantum privacy amplification
Bartosz Regula, Marco Tomamichel
We introduce an improved one-shot characterisation of randomness extraction against quantum side information (privacy amplification), strengthening known one-shot bounds and provid…
Tight relations and equivalences between smooth relative entropies
Bartosz Regula, Ludovico Lami, Nilanjana Datta
The precise one-shot characterisation of operational tasks in classical and quantum information theory relies on different forms of smooth entropic quantities. A particularly impor…
Asymptotic quantification of entanglement with a single copy
Ludovico Lami, Mario Berta, Bartosz Regula
Despite the central importance of quantum entanglement in quantum technologies, the understanding of the optimal ways to exploit it is still beyond our reach, and even measuring en…
Beyond Hoeffding and Chernoff: Trading conclusiveness for advantages in quantum hypothesis testing
Kaiyuan Ji, Bartosz Regula
The ultimate limits of quantum state discrimination are often thought to be captured by asymptotic bounds that restrict the achievable error probabilities, notably the quantum Cher…