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39 papers · 2 filters
Quantum and Classical Frontiers of Noise
X. Oriols
This paper is an introduction to the eleven works of the special issue on Quantum and Classical Frontiers of Noise. The weather, and its butterfly effect, is the typical example th…
Logarithmic coherence: Operational interpretation of -norm coherence
Swapan Rana, Preeti Parashar, Andreas Winter +1
We show that the distillable coherence---which is equal to the relative entropy of coherence---is, up to a constant factor, always bounded by the -norm measure of coherence…
Gaussian entanglement revisited
Ludovico Lami, Alessio Serafini, Gerardo Adesso
We present a novel approach to the separability problem for Gaussian quantum states of bosonic continuous variable systems. We derive a simplified necessary and sufficient separabi…
Generalized Laws of Thermodynamics in the Presence of Correlations
Manabendra Nath Bera, Arnau Riera, Maciej Lewenstein +1
The laws of thermodynamics, despite their wide range of applicability, are known to break down when systems are correlated with their environments. Here, we generalize thermodynami…
Low-temperature thermometry can be enhanced by strong coupling
Luis A. Correa, Martí Perarnau-Llobet, Karen V. Hovhannisyan +3
We consider the problem of estimating the temperature of a very cold equilibrium sample. The temperature estimates are drawn from measurements performed on a quantum probe st…
Probabilistic metrology or how some measurement outcomes render ultra-precise estimates
J. Calsamiglia, B. Gendra, R. Munoz-Tapia +1
We show on theoretical grounds that, even in the presence of noise, probabilistic measurement strategies (which have a certain probability of failure or abstention) can provide, up…