Colloquium: quantum coherence as a resource

By Alexander Streltsov, Gerardo Adesso, Martin Bodo Plenio. 2016

1,491 citations recorded by the source corpus.

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 mechanics from the classical realm. Quantum coherence in many-body systems embodies the essence of entanglement and is an essential ingredient for a plethora of physical phenomena in quantum optics, quantum information, solid state physics, and nanoscale thermodynamics. In recent years, research on the presence and functional role of quantum coherence in biological systems has also attracted a considerable interest. Despite the fundamental importance of quantum coherence, the development of a rigorous theory of quantum coherence as a physical resource has only been initiated recently. In this Colloquium we discuss and review the development of this rapidly growing research field that encompasses the characterization, quantification, manipulation, dynamical evolution, and operational application of quantum coherence.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/5bda21cb2b92888e970242adffa0e15c60e7b9d8

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Citations in the corpus

Indefinite causal order enables perfect quantum communication with zero capacity channels (2018, background): “Hence, a key resource in the protocol is quantum coherence [50] in the qubit controlling the causal order.”
Quantum-enhanced measurements without entanglement (2017, background): “…in parallel schemes and coherence (namely, superposition in the eigenbasis of the generator) (Baum- gratz et al., 2014; Marvian and Spekkens, 2016; Streltsov et al., 2017) in sequential schemes further extends to certain schemes of quantum metrology in the presence of noise, namely when the…”
Modes and states in quantum optics (2019, neutral): “quantum technologies (Streltsov et al., 2017).”
Quantum coherence and geometric quantum discord (2017, background): “Streltsov et al. (2017a) reviewed the resource theory of coherence, while our concerns are quantum coherence, quantum correlations, and their intrinsic connections.”
Quantum Simulators: Architectures and Opportunities (2019, background): “[25] Alexander Streltsov, Gerardo Adesso, and Martin B Plenio.”
Quantum optimal control in quantum technologies. Strategic report on current status, visions and goals for research in Europe (2022, background): “This framework supports the viewpoint that coherence is a resource [539].”
The role of quantum coherence in non-equilibrium entropy production (2017, background): “Coherence is an essential resource for quantum processes [13], likely representing the ultimate feature setting quantum and classical worlds apart.”
Coherence effects in the performance of the quantum Otto heat engine (2018, methodology): “where ε (·) = ∑ n Πn (·) Πn is the full dephasing map and C (ρ) = S (ε (ρ)) − S (ρ) is the relative entropy of coherence (in the reference state basis) [12–16].”