Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental...
Transcript of Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental...
![Page 1: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/1.jpg)
Coherence and decoherence of open quantum systems (OQS)
HS Quanteninformation: Quantum Biology
ITP January 2013
![Page 2: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/2.jpg)
OQS – Master Course
Quantum Many
Body Systems
Interacting many body system
Coherent Phenomena ( inc collective effects)
Entanglement generation, manipulation and control
Decoherence: influence of the environment
![Page 3: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/3.jpg)
OQS – Master Course
Quantum Many Body Systems
Emergence, characterization
and quantification
of quantum correlationsUtilization of quantum features
for simulation, metrology and sensing
Fundamental aspects:
Measures of classicality
and quantum coherence
Canonical Examples of Coherent Dynamics
Quantum Optics (Jaynes Cummings model,
EIT, Superradiance)
![Page 4: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/4.jpg)
Clear relation to actual in house experiments
![Page 5: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/5.jpg)
OQS – Master Course
Description of System - Environment interactions:
Dynamics of Open Quantum Systems: Decoherence
And beyond: Persistence of quantum coherence
in complex many body systems
![Page 6: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/6.jpg)
OQS – Master Course
Quantum Many Body Systems
Emergence, characterization and
quantification of quantum correlations
The dynamics of open quantum
systems: Decoherence
Utilization of quantum features
for simulation, metrology and sensing
Persistence of quantum coherence
in complex many body systems
![Page 7: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/7.jpg)
HS Quantum Biology-- Recent experimental results in energy transfer across types of
Photosynthetic complexes: evidence of quantum coherence
-- Noise assisted transport: Interplaying noise and coherence
for optimal performance
-- Physical origin of long lived quantum (exciton) coherence
![Page 8: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/8.jpg)
(Non-trivial) Quantum Effects
in Biology??
![Page 9: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/9.jpg)
![Page 10: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/10.jpg)
Fenna-Matthew-Olson (FMO) complex
- R.E. Fenna and B.W. Matthews,
Nature 258 573 (1975)
- Y.-C. Cheng & G.R. Fleming,
Annual Reviews of Phys. Chem. 2009
- Schmidt am Busch et al,
The Eighth Bacteriochlorophyll
Completes the Excitation Energy Funnel
in the FMO Protein. J. Phys. Chem. Lett.
2, 93 (2011)
![Page 11: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/11.jpg)
Experimental evidence at
cryogenic and physiological
temperatures indicates the
presence of quantum coherence
Further results: Scholes group
![Page 12: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/12.jpg)
A theoretical model
![Page 13: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/13.jpg)
DephasingPhase randomization
RelaxationEnergy exchange
A Theoretical Model
j
jl
l
![Page 14: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/14.jpg)
No dephasing
Some dephasing
Plenio & Huelga, New J. Phys. 2008
Mohseni, Rebentrost, Lloyd, Aspuru-Guzik, J. Phys. Chem. 2008
More dephasing
![Page 15: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/15.jpg)
Reduction of
destructive
interference
Inhibition
of coupling
through
dephasing
Dependence on Noise Strength
![Page 16: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/16.jpg)
![Page 17: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/17.jpg)
HS Quantum Biology
Theoretical modelling of open quantum systems
Quantification and detection of quantum correlations in
complex systems
Efficient numerical simulation of many body systems
Novel probing schemes: interfacing with quantum probes
![Page 18: Coherence and decoherence of open quantum systems ...HS Quantum Biology-- Recent experimental results in energy transfer across types of Photosynthetic complexes: evidence of quantum](https://reader030.fdocuments.in/reader030/viewer/2022011921/60394eea4bd2524ffd0a1e74/html5/thumbnails/18.jpg)
Institute of Theoretical Physics (AG Plenio & Huelga)