Colloquium: Quantum coherence as a resource

A Streltsov, G Adesso, MB Plenio - Reviews of Modern Physics, 2017 - APS
The coherent superposition of states, in combination with the quantization of observables,
represents one of the most fundamental features that mark the departure of quantum …

Quantum entanglement

R Horodecki, P Horodecki, M Horodecki… - Reviews of modern …, 2009 - APS
All our former experience with application of quantum theory seems to say that what is
predicted by quantum formalism must occur in the laboratory. But the essence of quantum …

Group-invariant quantum machine learning

M Larocca, F Sauvage, FM Sbahi, G Verdon, PJ Coles… - PRX Quantum, 2022 - APS
Quantum machine learning (QML) models are aimed at learning from data encoded in
quantum states. Recently, it has been shown that models with little to no inductive biases (ie …

The classical-quantum boundary for correlations:<? format?> Discord and related measures

K Modi, A Brodutch, H Cable, T Paterek, V Vedral - Reviews of Modern Physics, 2012 - APS
One of the best signatures of nonclassicality in a quantum system is the existence of
correlations that have no classical counterpart. Different methods for quantifying the …

Necessary and sufficient condition for nonzero quantum discord

B Dakić, V Vedral, Č Brukner - Physical review letters, 2010 - APS
Quantum discord characterizes “nonclassicality” of correlations in quantum mechanics. It
has been proposed as the key resource present in certain quantum communication tasks …

Quantum discord and the power of one qubit

A Datta, A Shaji, CM Caves - Physical review letters, 2008 - APS
We use quantum discord to characterize the correlations present in the model called
deterministic quantum computation with one quantum bit (DQC1), introduced by Knill and …

Quantum discord for two-qubit systems

S Luo - Physical Review A—Atomic, Molecular, and Optical …, 2008 - APS
Quantum discord, as introduced by Olliver and Zurek [Phys. Rev. Lett. 88, 017901 (2001)], is
a measure of the discrepancy between two natural yet different quantum analogs of the …

Quantum-enhanced measurements without entanglement

D Braun, G Adesso, F Benatti, R Floreanini… - Reviews of Modern …, 2018 - APS
Quantum-enhanced measurements exploit quantum mechanical effects for increasing the
sensitivity of measurements of certain physical parameters and have great potential for both …

Quantum discord for two-qubit states

M Ali, ARP Rau, G Alber - Physical Review A—Atomic, Molecular, and Optical …, 2010 - APS
Quantum discord, a kind of quantum correlation, is defined as the difference between
quantum mutual information and classical correlation in a bipartite system. In general, this …

Experimental quantum computing without entanglement

BP Lanyon, M Barbieri, MP Almeida, AG White - Physical review letters, 2008 - APS
Deterministic quantum computation with one pure qubit (DQC1) is an efficient model of
computation that uses highly mixed states. Unlike pure-state models, its power is not derived …