Maria Violaris
DEVELOPER ADVOCATE
Maria has a hybrid role at OQC of quantum error correction research towards building a fault-tolerant quantum computer, and technical science communication. She has a PhD in theoretical quantum information from the University of Oxford, alongside which she interned with IBM Quantum making the “Quantum Paradoxes” YouTube series. She has spearheaded multiple new initiatives in the quantum community, including the “Quantum on the Clock” Schools Video Competition; Oxford Quantum Information Society; and quantum computing workshops. She has also written for Physics World magazine; published quantum education research; and hosts a Quantum Foundations Podcast on her YouTube channel, amongst other quantum content.
EVENT DETAILS
Launched in August 2022, the Quantum Energy Initiative is fostering a worldwide community of experts willing to develop scientific approaches to evaluating and minimizing the physical resource costs of emerging quantum technologies. This requires the synergy of a broad range of expertises, from fundamental quantum physics to enabling technologies, from hardware to software, from research to industry.
Building on the strong foundations at the first Quantum Energy Initiative Workshop (Singapore, Nov 2023), this second workshop will bring together highly renowned speakers of all these areas, to provide their vision on these exciting and essential questions. It will also leave time for discussions and crossed-fertilization to the build new methodologies and roadmaps.
See Workshop Spirit.
SESSION DETAILS
OQC Developer Advocate, Maria Violaris, will be speaking on her recently published quantum thermodynamics paper.
Date: Wednesday 8th January | Time: 2 – 3pm
Impossibility of universal work extraction from coherence: reconciling axiomatic and resource-theory approaches
Abstract
We compare how the impossibility of a universal work extractor from coherence arises from different approaches to quantum thermodynamics: an explicit protocol accounting for all relevant quantum resources, and axiomatic, information-theoretic constraints imposed by constructor theory. We first explain how the impossibility of a universal work extractor from coherence is directly implied by a recently proposed constructor-theoretic theorem based on distinguishability, which is scale- and dynamics- independent. Then we give an explicit demonstration of this result within quantum theory, by proving the impossibility of generalising a proposed quantum protocol for deterministically extracting work from coherence. We demonstrate a new connection between the impossibility of universal work extractors and constructor-based irreversibility, which was recently shown using the quantum homogenizer. Finally we discuss additional avenues for applying the constructor-theoretic formulation of work extraction to quantum thermodynamics, including the irreversibility of quantum computation and thermodynamics of multiple conserved quantities.
Read the full article here.
