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Probe thermometry with continuous measurements
Temperature estimation plays a vital role across natural sciences. A standard approach is
provided by probe thermometry, where a probe is brought into contact with the sample and …
provided by probe thermometry, where a probe is brought into contact with the sample and …
Strongly coupled fermionic probe for nonequilibrium thermometry
We characterise the measurement sensitivity, quantified by the quantum Fisher information
(QFI), of a single-fermionic thermometric probe strongly coupled to the sample of interest, a …
(QFI), of a single-fermionic thermometric probe strongly coupled to the sample of interest, a …
Optomechanics-based quantum estimation theory for collapse models
We make use of the powerful formalism of quantum parameter estimation to assess the
characteristic rates of a continuous spontaneous localization (CSL) model affecting the …
characteristic rates of a continuous spontaneous localization (CSL) model affecting the …
Collisional thermometry for Gaussian systems
We investigate a quantum thermometry scheme-based collision model with Gaussian
systems. A key open question of these schemes concerns the scaling of the quantum Fisher …
systems. A key open question of these schemes concerns the scaling of the quantum Fisher …
Mixing thermal coherent states for precision and range enhancement in quantum thermometry
The unavoidable interaction between thermal environments and quantum systems typically
leads to the degradation of quantum coherence, which can be fought against by reservoir …
leads to the degradation of quantum coherence, which can be fought against by reservoir …
On the role of symmetry and geometry in global quantum sensing
Global sensing enables parameter estimation across arbitrary parameter ranges with a finite
number of shots. While various formulations exist, the Bayesian paradigm offers a flexible …
number of shots. While various formulations exist, the Bayesian paradigm offers a flexible …
Harnessing energy transitions for low-temperature thermometry
We present a scheme to extend the range and precision of temperature measurements
employing a qubit chain governed by Heisenberg $ XX $ and Dzyaloshinskii-Moriya (DM) …
employing a qubit chain governed by Heisenberg $ XX $ and Dzyaloshinskii-Moriya (DM) …
[PDF][PDF] Different levels of approximations in open quantum systems and their applications
RR Rodríguez - 2023 - bip.ug.edu.pl
Calculating the dynamics of a non-isolated system is generally computationally hard and
sometimes even not feasible. Due to that reason, one needs to use different approximations …
sometimes even not feasible. Due to that reason, one needs to use different approximations …
Quantum Thermometry for Ultra-Low Temperatures Using Probe and Ancilla Qubit Chains
We propose a scheme to enhance the range and precision of ultra-low temperature
measurements by employing a probe qubit coupled to a chain of ancilla qubits. Specifically …
measurements by employing a probe qubit coupled to a chain of ancilla qubits. Specifically …
Preparation of thermal coherent state and its role in quantum thermometry
The unavoidable interaction between thermal environments and quantum systems typically
leads to the degradation of the quantum coherence, which can be fought against by …
leads to the degradation of the quantum coherence, which can be fought against by …