2014
DOI: 10.1002/andp.201400067
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THz and above THz electron or hole oscillations in DNA dimers and trimers

Abstract: A non conventional source or receiver of THz and above THz electromagnetic radiation is proposed. Specifically, electron or hole oscillations in DNA dimers (two interacting DNA base‐pairs or monomers) are predicted, with frequency in the range 0.25–100 THz (period 10–4000 fs) i.e. potentially absorbing or emitting electromagnetic radiation mainly in the mid‐ and far‐infrared with wavelengths ≈ 3–1200 μm. The efficiency of charge transfer between the two monomers which make up the dimer is described with the … Show more

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Cited by 11 publications
(48 citation statements)
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“…Before discussing our RT-TDDFT results, we give a brief summary of the TB picture. In TB, charge transfer between the two bases of a monomer or between the two base pairs of a dimer can be easily analytically solved [8,17,18]. In both cases, it is a movement between the two sites i, j of a two-site system and it is mathematically similar to Rabi oscillations in Quantum Optics [39].…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Before discussing our RT-TDDFT results, we give a brief summary of the TB picture. In TB, charge transfer between the two bases of a monomer or between the two base pairs of a dimer can be easily analytically solved [8,17,18]. In both cases, it is a movement between the two sites i, j of a two-site system and it is mathematically similar to Rabi oscillations in Quantum Optics [39].…”
Section: Resultsmentioning
confidence: 99%
“…Our calculations for the cases AT(01), TA(01), GC(01), and CG(01) are not included in Fig.1, since they are identical with the cases AT(10), TA(10), GC(10), CG(10), respectively, as expected from base-pair symmetry and found also in Refs. [8,17,18].…”
Section: Resultsmentioning
confidence: 99%
“…Using the TB parameters of Ref. [16], we found [16,28,31] f ≈ 0.25-100 THz, i.e. T ≈ 10-4000 fs, i.e.…”
Section: Dimersmentioning
confidence: 95%
“…In other words, for trimers made of identical monomers, the frequency range is narrower than for dimers. For 0 times crosswise purines, the maximum transfer percentage p = 1, while for 1 or 2 times crosswise purines p < 1 [16,28]. TB II in trimers, generally, does not allow one to strictly determine periodicity; T, f, p, and pf cannot be defined.…”
Section: Trimersmentioning
confidence: 99%
“…Within the WM, it has been shown that carrier movement in all dimers is strictly periodic [55,247,248]. The frequencies (or periods) are given by Eq.…”
Section: Dimersmentioning
confidence: 99%