Results 21 to 30 of about 106,439 (257)
Generalization of group-theoretic coherent states for variational calculations
Physical Review Research, 2021 We introduce families of pure quantum states that are constructed on top of the well-known Gilmore-Perelomov group-theoretic coherent states. We do this by constructing unitaries as the exponential of operators quadratic in Cartan subalgebra elements and
Tommaso Guaita +4 more
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Optical tomography for excited coherent states associated to deformed oscillators
Results in Physics, 2019 In this manuscript, we study the deformed optical tomography for excited coherent states associated to deformed Heisenberg algebra. By using the numerical solution of the recurrence relation, we evaluate the eigenstates of the deformed quadrature ...
Abdullah M. Almarashi +4 more
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Highly accurate Gaussian process tomography with geometrical sets of coherent states
New Journal of Physics, 2021 We propose a practical strategy for choosing sets of input coherent states that are near-optimal for reconstructing single-mode Gaussian quantum processes with output-state heterodyne measurements.
Yong Siah Teo +4 more
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, 2012 In this chapter we consider that the unit sphere \(\mathbb {S}^{2}\) of the Euclidean space ℝ3 with its canonical symplectic structure is a phase space. Then coherent states are labeled by points on \(\mathbb {S}^{2}\) and allow us to build a quantization of the two sphere \(\mathbb {S}^{2}\).
Monique Combescure, Didier Robert
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Coherent shuttle of electron-spin states
npj Quantum Information, 2017 Qubit transfer: Shuttling single spins with quantum dots A technique enables transferring single spin qubits across an array of quantum dots while their phase coherence is preserved.
Takafumi Fujita +4 more
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Molecular bases of circadian magnesium rhythms across eukaryotes
FEBS Letters, EarlyView.Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley +1 more source
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Physics-guided dual implicit neural representations for source separation
Machine Learning: Science and TechnologySignificant challenges exist in efficient data analysis of most advanced experimental and observational techniques because the collected signals often include unwanted contributions, such as background and signal distortions, that can obscure the ...
Yuan Ni +9 more
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Groupoids and Coherent States [PDF]
Open Systems & Information Dynamics, 2019 Schwinger’s algebra of selective measurements has a natural interpretation in terms of groupoids. This approach is pushed forward in this paper to show that the theory of coherent states has a natural setting in the framework of groupoids. Thus given a quantum mechanical system with associated Hilbert space determined by a representation of a groupoid,
Di Cosmo, Fabio +2 more
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FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source