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[Fizinfo] Tuesday 14:15 - Jan Krzywda on coherent electron shuttling

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  • From: Andras Palyi <palyi.andras AT>
  • To: exotic-quantum-phases-seminar AT, FIZINFO AT, kvantuminfo AT
  • Subject: [Fizinfo] Tuesday 14:15 - Jan Krzywda on coherent electron shuttling
  • Date: Thu, 2 Dec 2021 17:27:35 +0100
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Dear Colleagues,

The BME Exotic Quantum Phases seminar continues on Tuesday at 14:15 with this

Jan Krzywda (Warsaw)
Coherent electron shuttling as an adiabatic transition in the open
quantum system

online in Teams
Time: Dec 7 Tuesday, 14:15
Abstract: see below

Teams meeting link:

Best regards,
Andras Palyi

= = =

Jan Krzywda (Warsaw)
Coherent electron shuttling as an adiabatic transition in the open quantum

As predicted by the Landau-Zener model, isolated quantum system driven though
avoided crossing remains in its ground state provided external drive is
sufficiently slow. We show the opposite might be true in presence of coupling
between the system and its environment, as the longer transition time allows
for energy exchange. As an example we analyze, relevant for scaling of future
quantum computer [1], coherent shuttling of electron in realistic Silicon and
GaAs nanostructures [2,3].

[1] L. M. K. Vandersypen et al., Interfacing spin qubits in quantum dots and
donors—hot, dense, and coherent, npj Quantum Information 3, Article number:
34 (2017)
[2] Jan A. Krzywda, Łukasz Cywiński, Adiabatic electron charge transfer
between two quantum dots in presence of 1/f noise, Phys. Rev. B 101, 035303
[3] Jan A. Krzywda, Łukasz Cywiński, Interplay of charge noise and coupling
to phonons in adiabatic electron transfer between quantum dots, Phys. Rev. B
104, 075439 (2021)

  • [Fizinfo] Tuesday 14:15 - Jan Krzywda on coherent electron shuttling, Andras Palyi, 12/02/2021

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