Zobrazeno 1 - 10
of 234
pro vyhledávání: '"Kattnig, Daniel R."'
Autor:
Alvarez, Pedro H., Chowdhury, Farhan T., Smith, Luke D., Brokowski, Trevor J., Aiello, Clarice D., Kattnig, Daniel R., de Oliveira, Marcos C.
Understanding the intricate quantum spin dynamics of radical pair reactions is crucial for unraveling the underlying nature of chemical processes across diverse scientific domains. In this work, we leverage Trotterization to map coherent radical pair
Externí odkaz:
http://arxiv.org/abs/2406.12986
Publikováno v:
Quantum Science and Technology 9, 035041 (2024)
Quantum sensing enables the ultimate precision attainable in parameter estimation. Circumstantial evidence suggests that certain organisms, most notably migratory songbirds, also harness quantum-enhanced magnetic field sensing via a radical-pair-base
Externí odkaz:
http://arxiv.org/abs/2401.02923
Publikováno v:
PRX Quantum 5, 020303 (2024)
We realize arbitrary waveform-based control of spin-selective recombination reactions of radical pairs in the low magnetic field regime. To this end, we extend the Gradient Ascent Pulse Engineering (GRAPE) paradigm to allow for optimizing reaction yi
Externí odkaz:
http://arxiv.org/abs/2306.08613
Autor:
Ramsay, Jessica L., Kattnig, Daniel R.
A popular hypothesis ascribes magnetoreception to a magnetosensitive recombination reaction of a pair of radicals in the protein cryptochrome. Many theoretical studies of this model have ignored inter-radical interactions, particularly the electron-e
Externí odkaz:
http://arxiv.org/abs/2303.12117
The Posner molecule (calcium phosphate trimer), has been hypothesized to function as a biological quantum information processor due to its supposedly long-lived entangled $^{31}$P nuclear spin states. This hypothesis was challenged by our recent find
Externí odkaz:
http://arxiv.org/abs/2210.14812
Autor:
Ramsay, Jess, Kattnig, Daniel R.
Adult hippocampal neurogenesis and hippocampus-dependent cognition in mice have been found to be adversely affected by hypomagnetic field exposure. The effect concurred with a reduction of reactive oxygen species in the absence of the geomagnetic fie
Externí odkaz:
http://arxiv.org/abs/2206.08192
Publikováno v:
Journal of Physical Chemistry Letters 13, 10500 (2022)
The mechanism underlying magnetoreception has long eluded explanation. A popular hypothesis attributes this sense to the quantum coherent spin dynamics of spin-selective recombination reactions of radical pairs in the protein cryptochrome. However, c
Externí odkaz:
http://arxiv.org/abs/2206.07355
Publikováno v:
Sci Rep 12, 6011 (2022)
It is hypothesised that the avian compass relies on spin dynamics in a recombining radical pair. Quantum coherence has been suggested as a resource to this process that nature may utilise to achieve increased compass sensitivity. To date, the true fu
Externí odkaz:
http://arxiv.org/abs/2111.04856
The Posner molecule, $\text{Ca}_9(\text{PO}_4)_6$, has long been recognized to have biochemical relevance in various physiological processes. It has found recent attention for its possible role as a biological quantum information processor, whereby t
Externí odkaz:
http://arxiv.org/abs/2108.08822
Autor:
Keens, Robert H., Kattnig, Daniel R.
We adapt the Monte-Carlo wavefunction (MCWF) approach to treat the open-system spin dynamics of radical pairs subject to spin-selective recombination reactions. For these systems, non-Lindbladian master equations are widely employed, which account fo
Externí odkaz:
http://arxiv.org/abs/2005.04417