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Dynamical quantum tomography [PDF]
Journal of Mathematical Physics, 2016 We consider quantum state tomography with measurement procedures of the following type: First, we subject the quantum state we aim to identify to a known time evolution for a desired period of time. Afterwards we perform a measurement with a fixed measurement setup.
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Efficient evaluation of accuracy of molecular quantum dynamics using dephasing representation [PDF]
, 2009 Ab initio methods for electronic structure of molecules have reached a satisfactory accuracy for calculation of static properties, but remain too expensive for quantum dynamical calculations.
Baiqing Li +3 more
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Classical dynamics as constrained quantum dynamics [PDF]
Journal of Physics A: Mathematical and General, 2003 We show that the classical mechanics of an algebraic model are implied by its quantizations. An algebraic model is defined, and the corresponding classical and quantum realizations are given in terms of a spectrum generating algebra. Classical equations of motion are then obtained by constraining the quantal dynamics of an algebraic model to an ...
Bartlett, Stephen D., Rowe, David J.
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Observation-assisted optimal control of quantum dynamics [PDF]
, 2006 This paper explores the utility of instantaneous and continuous observations in the optimal control of quantum dynamics. Simulations of the processes are performed on several multilevel quantum systems with the goal of population transfer.
Alexander Pechen +8 more
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Nonlocality in Bell’s Theorem, in Bohm’s Theory, and in Many Interacting Worlds Theorising
Entropy, 2018 “Locality” is a fraught word, even within the restricted context of Bell’s theorem. As one of us has argued elsewhere, that is partly because Bell himself used the word with different meanings at different stages in his career.
Mojtaba Ghadimi +2 more
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Scalable ion–photon quantum interface based on integrated diffractive mirrors
npj Quantum Information, 2017 Quantum computing: high-resolution optics built directly into a micro-fabricated ion trap Building large-scale quantum computers or distributed networks of quantum computers requires small-scale nodes to be readily replicated and effectively connected ...
Moji Ghadimi +11 more
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Experimental optical phase measurement approaching the exact Heisenberg limit
Nature Communications, 2018 Measurements of an unknown optical phase have not yet been performed with the ultimate precision, i.e. saturating the Heisenberg limit. Here, Daryanoosh et al.
Shakib Daryanoosh +4 more
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A possibilistic no-go theorem on the Wigner’s friend paradox
New Journal of Physics, 2023 The famous ‘Wigner’s friend’ paradox highlights the difficulty of modelling the evolution of quantum systems under measurement in situations where observers themselves are considered to be subject to the laws of quantum mechanics.
Marwan Haddara, Eric G Cavalcanti
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Annual Review of Condensed Matter Physics, 2018 Quench dynamics is an active area of study encompassing condensed matter physics and quantum information, with applications to cold-atomic gases and pump-probe spectroscopy of materials. Recent theoretical progress in studying quantum quenches is reviewed.
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Experimental noiseless linear amplification using weak measurements
New Journal of Physics, 2016 The viability of quantum communication schemes rely on sending quantum states of light over long distances. However, transmission loss can degrade the signal strength, adding noise.
Joseph Ho +3 more
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