+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Quantum control and entanglement in a chemical compass



Quantum control and entanglement in a chemical compass



Physical Review Letters 104(22): 220502



The radical-pair mechanism is one of the two main hypotheses to explain the navigability of animals in weak magnetic fields, enabling, e.g., birds to see Earth's magnetic field. It also plays an essential role in spin chemistry. Here, we show how quantum control can be used to either enhance or reduce the performance of such a chemical compass, providing a new route to further study the radical-pair mechanism and its applications. We study the role of radical-pair entanglement in this mechanism, and demonstrate its intriguing connections with the magnetic-field sensitivity of the compass. Beyond their immediate application to the radical-pair mechanism, these results also demonstrate how state-of-the-art quantum technologies could potentially be used to probe and control biological functions.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 055326175

Download citation: RISBibTeXText

PMID: 20867156

DOI: 10.1103/physrevlett.104.220502


Related references

Quantum coherence and entanglement in the avian compass. Physical Review. E Statistical Nonlinear and Soft Matter Physics 87(6): 062704, 2013

Sustained quantum coherence and entanglement in the avian compass. Physical Review Letters 106(4): 040503, 2011

Sensitivity and entanglement in the avian chemical compass. Physical Review. E Statistical Nonlinear and Soft Matter Physics 90(4): 042707, 2014

Quantum Entanglement and Chemical Reactivity. Journal of Chemical Theory and Computation 11(11): 5144-5151, 2015

Quantum probe and design for a chemical compass with magnetic nanostructures. Physical Review Letters 106(10): 100501, 2011

Chemical compass model for avian magnetoreception as a quantum coherent device. Physical Review Letters 111(23): 230503, 2013

Quantum phase control of entanglement. Physical Review Letters 93(19): 190502, 2004

Entanglement model of homeopathy as an example of generalized entanglement predicted by weak quantum theory. Forschende Komplementarmedizin und Klassische Naturheilkunde 10(4): 192-200, 2003

Quantum control and entanglement using periodic driving fields. Physical Review Letters 99(11): 110501, 2007

Quantum entanglement and spin control in silicon nanocrystal. Plos one 7(9): E45254, 2012

Entanglement spectrum as a generalization of entanglement entropy: identification of topological order in non-Abelian fractional quantum Hall effect states. Physical Review Letters 101(1): 010504, 2008

Entanglement in interference-based quantum control: the wave function is not enough. Faraday Discussions 153: 149-57; Discussion 189-212, 2011

Quantum temporal correlations and entanglement via adiabatic control of vector solitons. Physical Review Letters 97(2): 023902, 2006

Coherent control to prepare an InAs quantum dot for spin-photon entanglement. Physical Review Letters 112(12): 126801, 2014

Optimal quantum control of multimode couplings between trapped ion qubits for scalable entanglement. Physical Review Letters 112(19): 190502, 2014