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SYQC: Symposium Quantum Coherence in Quantum Technology

SYQC 1: Quantum Coherence in Quantum Technology

SYQC 1.1: Invited Talk

Thursday, March 8, 2018, 14:00–14:30, RW HS

The resource theory of quantum coherence — •Martin B Plenio — Institut für Theoretische Physik, Universität Ulm

Resource Theories provide a unifying structure in which the quantification of the usefulness of a broad range of physical properties finds its most natural setting. Whenever practical or fundamental constraints limit the operations that are accessible to us, physical states that cannot be generated under this constrained set of operations achieve the character of a useful resource that may be consumed to achieve tasks that cannot be achieved under the constrained operations alone. Local operations and classical communication is perhaps the most well known example which gave birth to the resource theory of entanglement. Recently, a similar treatment was adopted for the arguably more fundamental concept of quantum coherence and the resulting resource theory of coherence is now a highly active field of research. In this talk I will discuss recent developments in the field, especially those that are aimed to connect the concepts of coherence with control of quantum systems by classical control as well as the relationship between coherence and classicality in dynamical evolutions.