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A Langevin Canonical Approach to the Study of Quantum Stochastic Resonance in Chiral Molecules

AuthorsRojas Lorenzo, G.; Peñate-Rodríguez, Helen C.; Dorta-Urra, A. ; Bargueño, Pedro ; Miret-Artés, Salvador
Issue Date29-Sep-2016
PublisherMultidisciplinary Digital Publishing Institute
CitationEntropy 18(10): 354 (2016)
AbstractA Langevin canonical framework for a chiral two-level system coupled to a bath of harmonic oscillators is used within a coupling scheme different from the well-known spin-boson model to study the quantum stochastic resonance for chiral molecules. This process refers to the amplification of the response to an external periodic signal at a certain value of the noise strength, being a cooperative effect of friction, noise, and periodic driving occurring in a bistable system. Furthermore, from this stochastic dynamics within the Markovian regime and Ohmic friction, the competing process between tunneling and the parity violating energy difference present in this type of chiral systems plays a fundamental role. This mechanism is finally proposed to observe the so-far elusive parity-violating energy difference in chiral molecules.
Identifiersdoi: 10.3390/e18100354
Appears in Collections:(CFMAC-IFF) Artículos
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