222 citations · 1.2k across the 62 of their papers we have counts for
62 papers
Quantum measurements constrained by the third law of thermodynamics
M. Hamed Mohammady, Takayuki Miyadera
In the quantum regime, the third law of thermodynamics implies the unattainability of pure states. As shown recently, such unattainability implies that a unitary interaction betwee…
Programming of channels in generalized probabilistic theories
Takayuki Miyadera, Ryo Takakura
For a given target system and apparatus described by quantum theory, the so-called quantum no-programming theorem indicates that a family of states called programs in the apparatus…
An uncertainty relation for measurements of random unitary channels acting on a qubit
Taihei Kimoto, Takayuki Miyadera
By preparing an input state and measuring an observable for the output state, we can measure a quantum channel. Following the formulation given by Xiao et al., we study an uncertai…
Measurement disturbance and conservation laws in quantum mechanics
M. Hamed Mohammady, Takayuki Miyadera, Leon Loveridge
Measurement error and disturbance, in the presence of conservation laws, are analysed in general operational terms. We provide novel quantitative bounds demonstrating necessary con…
Testing incompatibility of quantum devices with few states
Teiko Heinosaari, Takayuki Miyadera, Ryo Takakura
When observations must come from incompatible devices and cannot be produced by compatible devices? This question motivates two integer valued quantifications of incompatibility, c…
Entropic Uncertainty Relations in a Class of Generalized Probabilistic Theories
Ryo Takakura, Takayuki Miyadera
Entropic uncertainty relations play an important role in both fundamentals and applications of quantum theory. Although they have been well-investigated in quantum theory, little i…