8 papers
Coherence of operations and interferometry
Michele Masini, Thomas Theurer, Martin B. Plenio
Quantum coherence is one of the key features that fuels applications for which quantum mechanics exceeds the power of classical physics. This explains the considerable efforts that…
Quantifying dynamical coherence with dynamical entanglement
Thomas Theurer, Saipriya Satyajit, Martin B. Plenio
Coherent superposition and entanglement are two fundamental aspects of non-classicality. Here we provide a quantitative connection between the two on the level of operations by sho…
Experimental quantification of coherence of a tunable quantum detector
Huichao Xu, Feixiang Xu, Thomas Theurer +5
Quantum coherence is a fundamental resource that quantum technologies exploit to achieve performance beyond that of classical devices. A necessary prerequisite to achieve this adva…
When is a non-Markovian quantum process classical?
Simon Milz, Dario Egloff, Philip Taranto +4
More than a century after the inception of quantum theory, the question of which traits and phenomena are fundamentally quantum remains under debate. Here we give an answer to this…
Quantum coherence and state conversion: theory and experiment
Kang-Da Wu, Thomas Theurer, Guo-Yong Xiang +4
The resource theory of coherence studies the operational value of superpositions in quantum technologies. A key question in this theory concerns the efficiency of manipulation and…
Quantifying Operations with an Application to Coherence
Thomas Theurer, Dario Egloff, Lijian Zhang +1
To describe certain facets of non-classicality, it is necessary to quantify properties of operations instead of states. This is the case if one wants to quantify how well an operat…