The physical Church-Turing thesis and the principles of quantum theory [PDF]
, 2011 Notoriously, quantum computation shatters complexity theory, but is innocuous to computability theory. Yet several works have shown how quantum theory as it stands could breach the physical Church-Turing thesis.
Arrighi, Pablo, Dowek, Gilles
core +6 more sources
Mpemba effects in nonequilibrium open quantum systems [PDF]
Physical Review ResearchThe Mpemba effect was originally referred to as the faster icing of a higher-temperature system than a lower-temperature system, and was later generalized to anomalous decays of both classical and quantum observables to equilibrium states.
Xuanhua Wang, Jin Wang
semanticscholar +1 more source
Quantum-Tailored Machine-Learning Characterization of a Superconducting Qubit
PRX Quantum, 2021 Machine learning (ML) is a promising approach for performing challenging quantum-information tasks such as device characterization, calibration, and control.
Élie Genois +7 more
doaj +1 more source
A general quantum algorithm for open quantum dynamics demonstrated with the Fenna-Matthews-Olson complex [PDF]
Quantum, 2022 Using quantum algorithms to simulate complex physical processes and correlations in quantum matter has been a major direction of quantum computing research, towards the promise of a quantum advantage over classical approaches.
Zixuan Hu +4 more
doaj +1 more source
Quantum Approximate Optimization Algorithm: Performance, Mechanism, and Implementation on Near-Term Devices [PDF]
Physical Review X, 2018 The Quantum Approximate Optimization Algorithm (QAOA) is a hybrid quantum-classical variational algorithm designed to tackle combinatorial optimization problems.
Leo Zhou +4 more
semanticscholar +1 more source
Learning quantum systems [PDF]
Nature Reviews Physics, 2022 The complexity of quantum systems increases exponentially with their size, but in many practical contexts there are assumptions (such as low rank, sparsity, or a specific type of expected dynamics) that enable classical algorithms to be efficient in the ...
Valentin Gebhart +9 more
semanticscholar +1 more source
Towards Adiabatic Quantum Computing Using Compressed Quantum Circuits [PDF]
PRX Quantum, 2023 We describe tensor network algorithms to optimize quantum circuits for adiabatic quantum computing. To suppress diabatic transitions, we include counterdiabatic driving in the optimization and utilize variational matrix product operators to represent ...
Conor Mc Keever, M. Lubasch
semanticscholar +1 more source
Multi-Parameter Entanglement in Femtosecond Parametric Down-Conversion [PDF]
, 2001 A theory of spontaneous parametric down-conversion, which gives rise to a quantum state that is entangled in multiple parameters, such as three-dimensional wavevector and polarization, allows us to understand the unusual characteristics of fourth-order ...
A. Joobeur +28 more
core +2 more sources
Quantum information theoretic approach to the mind-brain problem. [PDF]
Progress in Biophysics and Molecular Biology, 2020 The brain is composed of electrically excitable neuronal networks regulated by the activity of voltage-gated ion channels. Further portraying the molecular composition of the brain, however, will not reveal anything remotely reminiscent of a feeling, a ...
Danko D. Georgiev
semanticscholar +1 more source
Advances in Modeling of Noisy Quantum Computers: Spin Qubits in Semiconductor Quantum Dots
IEEE Access, 2023 The new quantum era is expected to have an unprecedented social impact, enabling the research of tomorrow in several pivotal fields. These perspectives require a physical system able to encode, process and store for a sufficiently long amount of time the
Davide Costa +3 more
doaj +1 more source