project updates

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Valentin Boettcher 2022-07-21 12:58:35 +02:00
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@ -541,14 +541,6 @@ See cite:Binder2018.
- cite:Stevens2021Sep energy change in qubit drive field conditioned on measurement outcome
- cites papers with engines fueled by measurements
** TODO Writing Up
- mention coupling/decoupling effects
- cite:Lobejko2021Feb -> weird: locked energy in coherences ->
restriction through thermal ops
- long strokes: no mixing in hierarchy -> trunc scheme
- future diffrent coupling to same bath -> thermal machine (shouldn't be possible)
- mention curzon ahlborn and squeezed bath
- mention potential power consistency check
*** TODO Intro
- recent interest in quantum thermodynamics
- no consensus: maybe for periodic steady state but not transient
@ -559,16 +551,39 @@ See cite:Binder2018.
- general dynamics interesting: mention settled weak coupling/markov case
- most methods -> manual access pertubative
- cite kato papers cite:Kato2015Aug, cite:Kato2016Dec -> result for HEOM
- HOPS can do this too
- HOPS can do this too (and likely better)
- HOPS side of motivation: we actually compute the whole unitary dynamics
*** TODO Short Mention of NMQSD and HOPS
- simple description, refer to appendix for details
*** TODO Basic Results
- how to calculate flow and interaction
**** TODO Maybe Higher Moments
- at least hint at it -> cutoff
- higher orders
**** TODO Cleaning it up
- proper chapters
- more prose
*** TODO Analytical Comparison
- brief review of the solution
- basic demonstration
- *maybe*: more numerics needed
- lessons learned
*** TODO Some Basic Quantum Thermodynamics
- operational results about ergotropy
- hint at next chapter
- support argument for bath memory on nmqsd and hops level
- point to numerical result (somewhere in the 08 project...)
- cite:Lobejko2021Feb -> weird: locked energy in coherences ->
restriction through thermal ops
**** TODO Explicit Calculation for Bath with "infinite Memory"
- N identical HO
- point out, that bound will be saturated if level spacing becomes
continous (a conjecture!!!!)
*** TODO Numerical Results
**** TODO One Bath Thermo
***** TODO Model and Convergence
@ -579,26 +594,53 @@ See cite:Binder2018.
- stocproc
- hierarchy depth
- flow faster than system (sometimes)
***** TODO Energy Reduction of the Bath
- energ
- initial slip pure dephasing
- consequences for design
- estimate of interaction energy
- ergotropy results: N identical HO, small detuning + consecutive interaction
- general argument
- initial slip dependence on BCF, coupling, also for time dependent
- non hermitian coupling and nonzero temperature
- fast driving of coupling or system or both
- *maybe* theories to explain, probably resonance effects
- look at golden rule etc
- support argument for effective passive state by uncoupling-recoupling the bath
***** TODO Initial Slip
- constant coupling
- dynamics coupling
- initial slip dependence on BCF, coupling, also for time dependent
- energy-transport requires going away from pure dephasing
- somewhat "classical" in its nature
***** TODO Energy Reduction of the Bath
- show energy shovel
- compare with σ_+ coupling
- show friction vs frictionless
- show with system vs without
- show modulation frequency dep -> speed limit
- show detuning depency -> resonance effect
- show ω_c depence -> genuine non-markov features
- discuss steady state behavior in light of theory
****** TODO a truckload of cleanup in [[file:python/energy_flow_proper/08_dynamic_one_bath/coupling_modulation.org][here]]
****** TODO find out if there is an applicaple markov result
**** TODO Two Baths
***** TODO short demo of two qubits coupled to two baths
- mention significance of non-commuting coupling: cite:Kato2016Dec
***** TODO Engines
***** TODO short demo of the otto cycle
- mention papers on the topic
- mention curzon ahlborn and squeezed bath
- only demonstration, no systematic enquiry made
***** TODO Anti-Zeno Engine
- short mention of the paper and the idea
- nice because: non-markovian
- description of the model, frictionless dynamics
- explaination of choice of parameters
- show basic anti-zeno result
- mention coupling/decoupling effects
****** TODO maybe try two hot baths :P
****** TODO maybe calculate interaction fluctuation
***** TODO MAYBE try to make something out of the shovel
* Brainstorm/Ideas
** Initial Coherences -> more work extraction
** Spohn
** Weak coupling second law
** Test new entropy definition vs extracted work
** Non monotonous entropy propduction <-> increased output?
** Compare with Rivas Method
- especially in the light of the ergo inequality
** classical/markov limit
@ -627,3 +669,4 @@ See cite:Binder2018.
- logical: no info is lost in computation
** RESEARCH [[id:c55b6bac-87e3-4b23-a238-c9135e3c1371][Quantum Fluctuation theorems?]]
** RESEARCH Do the enhancements in energy flow originate from the shift of the peak or from the absence of low energy modes?