Thread by @AimeeKGunther

After three months of go!go!go!, I finally had time to catch up on the @arxivblog preprints from my work VPN-free self-isolation. Neat #quantum follows: 🧵⬇️

🟣Starting in the broad field of quantum sensing, in force and acceleration sensing land: atom interferometry in cold atoms!

On my reading list, lecture notes, "Atom interferometry and its applications":
arxiv.org/abs/2001.10976

Next, a theoretical atom interferometry paper, with a new geometry:

"An atom interferometer testing the universality of free fall and gravitational redshift"
arxiv.org/abs/2001.09754

Still using atoms:

"Force and acceleration sensing with optically levitated nanogram masses at microkelvin temperatures"
arxiv.org/abs/2001.10931

Moving on to metrology, another sweet review paper for my reading/reference list:

"Photonic Quantum Metrology"
arxiv.org/abs/2003.05821

Next level metrology application: Advanced LIGO! (200kW laser + 40 kg mirrors➡️ joint quantum uncertainty below Standard quantum limit!!)😮

"Quantum correlations between the light and kilogram-mass mirrors of LIGO"
arxiv.org/abs/2002.01519

Atomic clocks: here, a compact stimulated Brillouin laser + strontium ions ➡️ compact optical atomic clock with an order of magnitude improvement over microwave clocks

"A Brillouin Laser Optical Atomic Clock"
arxiv.org/abs/2001.06429

Rydberg atoms! This time in alkaline-earth neutral atoms

"High-Fidelity Control, Detection, and Entanglement of Alkaline-Earth Rydberg Atoms"
arxiv.org/abs/2001.04455

Moving away from atoms to quantum sensing with just light: quantum illumination. My radar engineering friends would appreciate the link to receiver operator curves.

"Fundamental limits of quantum illumination"
arxiv.org/abs/2002.12252

I'm not really sure if this nanophotonic work fits here, but here's some good old frequency conversion (MW ➡️ optical)

"Converting microwave and telecom photons with a silicon photonic nanomechanical interface"
arxiv.org/abs/2002.11628

And now, related to my previous research interests😃:

"Imaging spatio-temporal Hong-Ou-Mandel interference of bi-photon states of extremely high Schmidt number"
arxiv.org/abs/2002.05690

"One of the central principles of quantum mechanics is that if there are multiple paths that lead to the same event, and there is no way to distinguish between them, interference occurs." ⬅️👌

"Interfering distinguishable photons"
arxiv.org/abs/2001.08125

🟣Next quantum subfield: quantum communication
Continuous variable QKD, making slow gains on discrete variable QKD!

"Long-distance continuous-variable quantum key distribution over 202.81 km fiber"
arxiv.org/abs/2001.02555

A tutorial on the limits on transmission rates from my PhD external examiner

"Quantum Limits in Optical Communications"
arxiv.org/abs/2002.05766

Quantum dots, folks.

"GHz-clocked teleportation of time-bin qubits with a telecom C-band quantum dot"
arxiv.org/abs/2001.07073

From my undergrad optics professor, a multimode atomic frequency comb quantum memory!

"Improved Light-Matter Interaction for Storage of Quantum States of Light in a Thulium-Doped Crystal Cavity"
arxiv.org/abs/2001.11456

🟣Next topic, quantum computing!

Holy heck, there's a lot of papers/advances in the last 3 months. Those papers are well hyped so I'll just highlight a few photonic ones closest to my nerd interest 🤓

Integrated optics, much squeezing, cool!

"Single-mode quadrature squeezing using dual-pump four-wave mixing in an integrated nanophotonic device"
arxiv.org/abs/2001.09474

Some nice theory work proposing some logical qubits with 3 mode resonators

"Room-Temperature Photonic Logical Qubits via Second-Order Nonlinearities"
arxiv.org/abs/2002.07193

🟣File to "ain't nobody got time for that"/"modern experimental life": optimizing 8-dimensional voltage parameter space for quantum dot operation

"Machine learning enables completely automatic tuning of a quantum device faster than human experts"
arxiv.org/abs/2001.02589

Cheers! #WashYourHands

@threadreaderapp unroll pls