Daniel Keefer

Quantum Chemistry & Physics. PostDoc @UCIrvine, Fellow @AvHStiftung.
Excited about everything you can do to molecules with light.

[Daniel Keefer @DanielKeefer_]

Hey #compchem, simulating nuclear wavepackets? We've got a protocol for you so you can excite them with entangled photons:
https://t.co/JI8hVyMwxV
All credits to @BingGu8 !

[Daniel Keefer @DanielKeefer_]

@BingGu8

[Daniel Keefer @DanielKeefer_]

Entangled photons for photochemistry?
A simulation study on everyone's favourite photoswitch, #azobenzene :
https://t.co/FVXeqMGGH3

[Daniel Keefer @DanielKeefer_]

@laura_mccaslin @SandiaLabs Quantum Control is exciting! Good luck with finding a suitable candidate, looking forward to hearing more about your research in this direction.

[Daniel Keefer @DanielKeefer_]

News from our Spectroscopy-of-Conical-Intersections-Department: Use non-invasive resonant infrared fields to enhance the coherence!
Out now @J_A_C_S
https://t.co/ioFKk8Sg1z

[Daniel Keefer @DanielKeefer_]

@james29892 Very interesting paper, thanks for sharing (and congratulations)!

[STChem @STChem2021]

We are happy to announce that the registration for the 57th Symposium on Theoretical Chemistry is now open! Virtual conference, organizers located in Würzburg, Germany. Follow us for the latest updates and highlights. #compchem

[Daniel Keefer @DanielKeefer_]

Excited state dynamics of cyclooctatetraene:
https://t.co/1JTyCgfHSO

The photochemistry involves a dynamical interplay of aromatic and non-aromatic states, mediated by conical intersections.

Another nice collaboration between LANL, UCI and UNIBO!

[Daniel Keefer @DanielKeefer_]

TRVS 2021 Conference is starting in a couple of hours:
https://t.co/gfKGZfUWU2

Stacked program, many interesting talks this week.
Come meet me at my (online) poster, I'll be discussing a recent paper https://t.co/O2hNoJNdez (and other ones if there's interest)

[Daniel Keefer @DanielKeefer_]

@SpecTqd @d__jadoun @eric_davidsson Beautiful signal.
And even an experimental one!

[Daniel Keefer @DanielKeefer_]

Already looking forward to it!

[Alan Aspuru-Guzik @A_Aspuru_Guzik]

Very excited to speak tomorrow at @UCIChemistry at the Edward K.C. Lee event!

[Daniel Keefer @DanielKeefer_]

A discussion you can learn a lot from about the current and future approaches in ultrafast X-ray science:
https://t.co/ZD99eywvSy

Very good read!

[Daniel Keefer @DanielKeefer_]

@AGTheoChem Gut gelungene und informative Ausgabe!

[Daniel Keefer @DanielKeefer_]

Quantum optimal control for spectroscopy:
https://t.co/O2hNoJNdez
Optimize the pump to selectively enhance the probe! This can enable the detection of interesting, but inherently weak spectral signatures.

[Daniel Keefer @DanielKeefer_]

Returning to campus/office after more than one year of home-office.
Feels a lot like visiting your childhood neighborhood again after many years. The flashbacks are real!

[Daniel Keefer @DanielKeefer_]

@Bach_Lab @UCIChemistry @FabianHoermann Good luck!
If you need help from an experienced Munich-to-Irvine-transitioner, let me know.

[SLAC National Accelerator Laboratory @SLAClab]

Researchers from SLAC, @UW and @PNNLab used X-rays from #LCLS to capture the rapid motions of solvent molecules that impact light-driven reactions in a molecular complex. What they learned could aid the development of more efficient clean energy sources. https://t.co/IJ0gtW30X2

[Daniel Keefer @DanielKeefer_]

Live-streaming is really taking over, not even space can stop it.
@NASA is currently streaming live from the International Space Station!
This is so fascinating.

[NASA @NASA]

LIVE: Spacewalk at the @Space_Station with astronauts Kate Rubins and @Astro_Soichi to prepare our orbiting laboratory for solar array upgrades. https://t.co/bUMIgdbzFt https://t.co/bUMIgdbzFt

[Daniel Keefer @DanielKeefer_]

Yet another reason why X-ray TRUECARS is so powerful in detecting molecular coherences: It even works in organic chromophores (>100 Atoms) with photovoltaic merit, where decoherence is a serious obstacle.
Check it out:
https://t.co/viAUypcJZq
#compchem @vmfreixas @sfalberti

[Physical Review X @PhysRevX]

High Temporal and Spectral Resolution of Stimulated X-Ray Raman Signals with Stochastic Free-Electron-Laser Pulses https://t.co/i7hZDpNT11 #openaccess