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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 03/10/2026

Nice visit to Yale Quantum Institute yesterday. Here was the #hotelview

View of New Haven CT from a hotel window. Blue sky with clouds near the horizon. A tall building on the left but mostly rooftops.

kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 23/08/2026

Great time at the @fieldsinstitute.bsky.social last week at the @cqiqc-uoft.bsky.social workshop. I spoke about spin-boson work. My colleague Iman Marvian's student Plato Deliyannis spoke about their work on Tavis-Cummings models.

A graduate student speaks about quantum control with the Tavis-Cummings model at a conference at the fields institute. The slide points to three papers: arXiv:2506.03453 , arXiv:2606.12906 , and arXiv:2606.12813

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 17/05/2026

Hiked up the Mountain to Sea Trail to the Blue Ridge Parkway and took this picture from the Devil Garden's overlook.

A view of avdecidious tree (mostly oaks) covered valley with mountain ridges in the distance off the Blue Ridge Parkway. Above the mountains is a blue sky dotted with fluffy white clouds (cumulus clouds).

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 16/05/2026

I took a post commencement backpacking trip to Stone Mountain, NC. #tentview

A picture of fire pit surrouned by fallen logs in a deciduous forest.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 16/05/2026

Congrats to all the 2026 graduates from my lab! Read more about them and their papers on the lab website. brownlab.pratt.duke.edu/news/2026-gr...

2026 graduates from the Brown Lab (1 BS, 2 MS, 2 PhD) and Dr. Brown pose for a photo.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 22/04/2026

I gave a talk about our quantum error correction tools at the Monte Verita Quantum Codes conference. It has been a great conference so far including experiment and theory for both CV and DV codes.

Kenneth Brown talking about quantum error correction tools developed in the Brown Lab at the Monte Verita Quantum Codes conference

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 04/03/2026

Had a great visit to the University of Wisconsin - Madison. Here is the #hotelview photo of the amazing new CS building, Morgridge Hall.

A picture of the computer science building, Morgridge Hall, at the University of Wosconsin Madison at night from a hotel room in South Union.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 12/02/2026

Excited to see Swapnil Patel's paper measuring charge exchange between K and CaH+ on the arXiv arxiv.org/abs/2602.09142 . Joint work with @michaltomza.bsky.social and Dibyendu Sardar at the University of Warsaw. Here is a picture of Swapnil (orange jacket) skiing with other Brown lab alumni.

Four former Brown lab members smiling at the camera with a ski mountain behind them.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 29/12/2025

post a perfect album from the 90s that isn't nirvana, pearl jam, etc etc

Cover of the Portishead album Dummy. The cover is a deep blues. It shows a mysterious woman in blue lights (Beth Gibbons lead singer of Portishead) with the word PORTISHEAD in the upper right corner in white and the word DUMMY in the lower left.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 22/12/2025

INTERNET makes your job easier, INTERNET gives your job to ROBOT, by me in 2015. If I drew it today, ROBOT would be AI.

Top: The Internet, depicted as an octopus, helping a human lift a barbell with the caption "INTERNET makes your job easier". Bottom: Octopus helping a robot lift the same weight with the caption while pushing the human away"INTERNET gives your job to ROBOT"

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 18/12/2025

Last stop in Korea the ICAMD conference in Busan. They had a booth to dress up in Joseon dynasty dress. Here I am dressed as a scholar.

A modern professor in the traditional Korean garb of a scholar in the Joseon dynasty. In front of the backdrop of a traditional Korean palace building.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 17/12/2025

Third stop on the Korea Tour was Seoul National University. I met with Prof. Taehyun Kim and his group. Here we are in the Yb+ lab.

Two ion trapping professors in an ion trap lab not touching any optics.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 16/12/2025

Next stop on the Korea tour was Sungkyunkwan University. I met with Profs. Yonuk Chong, Junki Kim, Dongmoon Min, and Seok-hyung Lee. Here I am with Prof. Chog, Prof. Kim and Dr. Quantum.

Three professors and Dr. Quantum, a large cartoon character, by an example of the inside of a cryogenic chamber at SKKU

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 16/12/2025

First stop on Korea trip last week: Ewha University and the labs of Prof. Taeyoung Choi.

Two professors in winter coats at the bottom of a deep staircase between two buildings that rise up like canyon walls.

Chalkboard in the physics department at Ewha Womans University with a cat in a box on it and an external observer. Physicists love chalkboards and drawing Schrödinger's thought experiment.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 16/12/2025

I arranged travel late for my visit and found myself with this #hotelview.

View from a hotel window of a parking lot, trees with a few last colorful leaves, and a cloudy sky. The clouds are almost a lattice of small clouds with blue sky peaking through.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 19/11/2025

Congrats to Samuel Phiri for successfully defending his thesis!

Advisor and student smiling after a successful thesis defense

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 04/10/2025

I also spent one afternoon networking and flyfishing

A smiling man in a floppy hat holding a small fish in one hand and a fly rod in the other on a lawn of grass.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 09/09/2025

My rule for #hotelview photos is that the camera should be pressed to the glass. Here is the best picture from the same window at the same time.

A light house and the sea near sunset taken from a hotel window in Egmond aan Zee.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 05/09/2025

QACTI Pilot: No tattoo QACTI Design: Temporary tattoo QACTI Implementation: The future is unwritten pratt.duke.edu/news/duke-nq... #NSF #NQVL

Arm with temporary tattoo of a prickly pear cactus pulling Nielsen and Chuang's Quantum Computation and Quantum Information book off a shelf of QM books

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 27/08/2025

I am currently at an IARPA program review in DC and accidentally picked a hotel that is across the street from @optica.org ( #hotelview ). We had a nice social event on the balcony with flowers in 2019. I was surprised to find that I took a photo and captured the window of my current hotel room.

2025 picture of DC landscape showing the Optica building from a hotel window.

2019 DC cityscape phot from the balcony of Optica building (then the Optical Society of America) showing the hotel window the hotelview photo was taken from.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 27/08/2025

In 2019 Rob Thew (www.unige.ch/gap/qic/qtec...) and I hosted a Workshop on US-EU Collaboration in Quantum Information Science at the @optica.org building. Here is the workshop photo. I know @tahantech.bsky.social and @andreasateth.bsky.social are on bluesky. Everyone else tag yourself.

Scientists and government officials outside of the Optica building in 2019.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 21/08/2025

Great talk by Friederike Butt from Aachen University at Duke Quantum Center today about measurement-free fault-tolerant quantum computation. arxiv.org/abs/2410.13568 arxiv.org/abs/2506.22600

Friederike Butt presenting her work on quantum computation.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 17/08/2025

We had 4 posters at QEC 2025. Eren's poster received an Honorable Mention in the poster competition. Congrats to Eren!

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 15/08/2025

EPiQC was an NSF Expedition project led by Fred Chong at the University of Chicago. We had a mini-reunion at QEC2025

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 12/08/2025

First suitcase got me through tenure and a sabbatical. The new third suitcase currently only has one sticker on it.

Quantum Department of Transportation sticker from Meow Wolf on a gray suitcase.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 12/08/2025

My friend who worked for CISCO said "The key to flying all the time is a hard-shell carry-on bag that fits in a CRJ-900 overhead bin." My second suit case that followed her advice reached its end.

Black suitcase covered in stickers of quantum computer and laser companies and a dog holding an 8-ball in the form of a maneki-neko

Black suitcase side with a sticker saying "My other computer is in superposition" with a microsoft quantum sticker below it that is a q in a hexagon.

The reverse side on the quantum suitcase with sticker for large classical computers at Oak Ridge National Laboratories, a Computing Community Consortium sticker, and an Oxford ionics sticker.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 11/08/2025

I only took pictures in museums last time. This one is from the Renwick. Alicia Eggert, This Present Moment, 2019-2020

Neon sign that says "THIS PRESENT MOMENT USED TO BE THE UNIMAGINABLE FUTURE."

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 06/08/2025

Another lyric from the song "Well-rehearsed lines from our elated politicians No longer offer solace, we can see the self-destruction" and the singer's Wu Tang shirt reminds me of this political sign. (I've seen it in many states. This picture is in VA)

A political sign that says "Politicians are temporary. Wu-Tang is forever" stapled to a wooden wall.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 05/08/2025

QSIM2025 poster session Qiang Miao and I invite people to read his poster about using MERA to calcualte entanglement properties with a quantum computer arxiv.org/abs/2412.18602

Dr. Qiang Miao gives a thumbs up in front of his poster about measuring entanglement at a phase transition using a MERA ansatz and a quantum computer. His co-author Prof. Kenneth Brown in robust quantum simulation t-shirt invites conference attendees to engage with the poster.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 05/08/2025

QSIM2025 Poster session Mingyu Kang discusses his work on spin-boson simulation www.nature.com/articles/s41...

A scientist describing their poster to two onlookers is making the scare-quote hand signal

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 05/08/2025

At QSIM2025 qsimconference.org held at IBM office in NY. The conference is amazing and so is the view of the city.

High-rises in New York as seen from the 10th floor terrace of the IBM NY building.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 03/08/2025

#SnailsofBlueSky #SuNAILDay Snail, Mainz, Germany 2024 Great trip to visit the Schmidt-Kaler lab and accidental timing allowed me to go to Open Ohr Festival

Snail using the sidewalk in Mainz, Germany. The sidewalk is made of bowtie-shaped tiles. The snail is moving diagonally relative to the tile work.

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 28/07/2025

Here is a picture of us sitting together at Benasque wearing the same type of hat.

Benasque Fault Tolerant Quantum Technologies Workshop group photo. About 100 scientist in outdoor clothing sit and stand in front of the Centro de Ciencias de Benasque Pedro Pascual

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kenbrownquantum.bsky.social @kenbrownquantum.bsky.social · 14/07/2025

Here is @vva.bsky.social double checking with the Karaoke DJ before his song.

On a dark stage with purple lights a duet prepares to sing ABBA's dancing queen at karaoke night at a hard rock bar in Stockholm. One singer checks with the DJ what key the song is in.

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