Dynamical maps beyond Markovian regime
D Chruściński - Physics Reports, 2022 - Elsevier
Quantum dynamical maps provide suitable mathematical representation of quantum
evolutions. When representing quantum states by density operators, the evident …
evolutions. When representing quantum states by density operators, the evident …
Entanglement asymmetry study of black hole radiation
Hawking's discovery that black holes can evaporate through radiation emission has posed a
number of questions that with time became fundamental hallmarks for a quantum theory of …
number of questions that with time became fundamental hallmarks for a quantum theory of …
Quantum secure direct communication with private dense coding using a general preshared quantum state
We study quantum secure direct communication using a general preshared quantum state
and a generalization of dense coding. In this scenario, Alice is allowed to apply a unitary …
and a generalization of dense coding. In this scenario, Alice is allowed to apply a unitary …
Optimal resource cost for error mitigation
R Takagi - Physical Review Research, 2021 - APS
One of the central problems for near-term quantum devices is to understand their ultimate
potential and limitations. We address this problem in terms of quantum error mitigation by …
potential and limitations. We address this problem in terms of quantum error mitigation by …
Correlation in catalysts enables arbitrary manipulation of quantum coherence
Quantum resource manipulation may include an ancillary state called a catalyst, which aids
the transformation while restoring its original form at the end, and characterizing the …
the transformation while restoring its original form at the end, and characterizing the …
Entanglement asymmetry in the critical XXZ spin chain
We study the explicit breaking of a SU (2) symmetry to a U (1) subgroup employing the
entanglement asymmetry, a recently introduced observable that measures how much …
entanglement asymmetry, a recently introduced observable that measures how much …
Arbitrary amplification of quantum coherence in asymptotic and catalytic transformation
Quantum coherence is one of the fundamental aspects distinguishing classical and quantum
theories. Coherence between different energy eigenstates is particularly important, as it …
theories. Coherence between different energy eigenstates is particularly important, as it …
Application of the resource theory of channels to communication scenarios
We introduce a resource theory of channels relevant to communication via quantum
channels, in which the set of constant channels—useless channels for communication tasks …
channels, in which the set of constant channels—useless channels for communication tasks …
Operational interpretation of quantum fisher information in quantum thermodynamics
I Marvian - Physical Review Letters, 2022 - APS
In the framework of quantum thermodynamics preparing a quantum system in a general
state requires the consumption of two distinct resources, namely, work and energetic …
state requires the consumption of two distinct resources, namely, work and energetic …
Wigner-Araki-Yanase theorem for continuous and unbounded conserved observables
The Wigner-Araki-Yanase (WAY) theorem states that additive conservation laws imply the
commutativity of exactly implementable projective measurements and the conserved …
commutativity of exactly implementable projective measurements and the conserved …