Measurements on a molecular junction appear to systematically determine the next measured state, which the author attributes to non-Markovian memory effects.
Decoupling environmental modes from tunneling electrons in a partially wet phase molecular mechanically controllable break junction
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abstract
A quantum effect at ambient conditions is presented. A benzene dithiol (BDT) molecule or a tetrahydrofuran (THF) molecule is used as a barrier molecule bridging the gold electrodes from a Mechanically Controllable Break junction. It has been known for a long time that the environment of a junction couples to the conduction. With a microscopic layer of fluid it is actually possible to influence this coupling. The electrode-molecule-electrode configuration is lined with a microscopic layer of THF fluid, also known as the partially wet phase. This is effectively decoupling the electrode-molecule-electrode system from environmental modes outside of this system. The effects on coherence and quantum interference are exceptional.
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cond-mat.mes-hall 1years
2024 1verdicts
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The impact of a measurement on an open quantum system
Measurements on a molecular junction appear to systematically determine the next measured state, which the author attributes to non-Markovian memory effects.