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Quantum Sensing of Noisy and Complex Systems under Dynamical Control
(Molecular Diversity Preservation International, 2016-12-24)
We review our unified optimized approach to the dynamical control of quantum-probe interactions with noisy and complex systems viewed as thermal baths. We show that this control, in conjunction with tools of quantum ...
Enhanced precision of low-temperature quantum thermometry via dynamical control
(Asociación Física Argentina, 2019)
Precise probing of quantum systems is one of the keys to progress in diverse quantum technologies, includingquantum metrology, quantum information processing and quantum many-body manipulations. We consider athermometer ...
A formalism for steering with local quantum measurements
(2018-08-01)
We develop a unified approach to classical, quantum and post-quantum steering. The framework is based on uncharacterised (black-box) parties performing quantum measurements on their share of a (possibly unphysical) quantum ...
Chiral heat transport in driven quantum Hall and quantum spin Hall edge states
(American Physical Society, 2011-11)
We consider a model for an edge state of electronic systems in the quantum Hall regime with filling ν=1 and in the quantum spin Hall regime. In both cases, the system is in contact with two reservoirs by tunneling at point ...
Quantum toric degeneration of quantum flag and Schubert varieties
(Springer, 2020-09)
We show that certain homological regularity properties of graded connected algebras, such as being AS-Gorenstein or AS-Cohen–Macaulay, can be tested by passing to associated graded rings. In the spirit of noncommutative ...
Quantum control of a model qubit based on a multi-layered quantum dot
(American Institute of Physics, 2013-04)
In this work we present a model qubit whose basis states are eigenstates of a multilayered quantum dot. We show that the proper design of the quantum dot results in qubit states that have excellent dynamical properties ...
Maximizing information on the environment by dynamically controlled qubit probes
(American Physical Society, 2016-01)
We explore the ability of a qubit probe to characterize unknown parameters of its environment. By resorting to the quantum estimation theory, we analytically find the ultimate bound on the precision of estimating key ...
Criticality of environmental information obtainable by dynamically controlled quantum probes
(American Physical Society, 2016-10-21)
A universal approach to decoherence control combined with quantum estimation theory reveals a critical behavior, akin to a phase transition, of the information obtainable by a qubit probe concerning the memory time of ...
Highly sensitive sensing of food additives based on fluorescent carbon quantum dots
(Elsevier B.V., 2021-04-15)
A robust fluorescence-based sensing strategy was designed considering relevance of analyzing chemical additives in industrialized food. In this study, a sensing approach was developed using fluorescent carbon quantum dots ...