Abstract
We consider in what sense quantum tunneling is associated with nonclassical probabilistic behavior. We use the Wigner function quasiprobability picture. We give a definition of tunneling that allows us to say whether in a given scenario there is tunneling or not. We prove that this can only happen if the Wigner function is negative and/or a certain measurement operator which we call the tunneling rate operator has a negative Wigner function. We also investigate tunneling in postquantum theories.
| Original language | English |
|---|---|
| Article number | 062210 |
| Journal | Physical Review A |
| Volume | 102 |
| Issue number | 6 |
| Online published | 15 Dec 2020 |
| DOIs | |
| Publication status | Published - Dec 2020 |
| Externally published | Yes |
Funding
O.C.O.D. is grateful for funding from the EU collaborative project TherMiQ (Grant Agreement No. 618074), Wolfson College, University of Oxford, the London Institute for Mathematical Sciences and the National Natural Science Foundation of China (NSFC).
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