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The cost and yield of moving from (quantum) state to (quantum) state

The countdown had begun. In ten days, I’d move from Florida, where I’d spent the summer with family, to Caltech. Unfolded boxes leaned against my dresser, and suitcases yawned on the floor. I was working on a paper. Even if I’d turned around from my desk, I wouldn’t have seen the stacked books and folded [...]

Faculty Lunch and Discussion

Faculty Lunch and Discussion Date Speaker Location April 12 Fernando Brandão, Mohammad Mirhosseini, Nai-Chang Yeh Online March 29 Meeting Postponed (due to APh visiting day) - now on April 12 Online March 8 Garnet Chan, Manuel Endres, Joseph Falson Online February 22, 2021 David Hsieh, Austin Minnich, Gil Refael Online February 8, 2021 Xie [...]

2021-03-29T10:35:37-07:00April 12th, 2016|Comments Off on Faculty Lunch and Discussion

Reading the sub(linear) text

Physicists are not known for finesse. “Even if it cost us our funding,” I’ve heard a physicist declare, “we’d tell you what we think.” Little wonder I irked the porter who directed me toward central Cambridge. The University of Cambridge consists of colleges as the US consists of states. Each college has a porter’s lodge, [...]

Free Feynman!

Last Friday the 13th was a lucky day for those who love physics --- The online html version of Volume 1 of the Feynman Lectures on Physics (FLP) was released! Now anyone with Internet access and a web browser can enjoy these unique lectures for free. They look beautiful. Mike Gottlieb at Caltech on [...]

2017-01-13T10:05:50-08:00September 21st, 2013|News|9 Comments

Quantum Matter Animated!

[youtube=http://www.youtube.com/watch?v=pktWhH6m_DM?vq=hd720&rel=0&showinfo=0] by Jorge Cham What does it mean for something to be Quantum? I have to confess, I don't know. My Ph.D was in Robotics and Kinematics, so my neurons are deeply trained to think in terms of classical dynamics. I asked my siblings (two engineers and one architect) what comes to mind for them [...]

The Most Awesome Animation About Quantum Computers You Will Ever See

[youtube=http://www.youtube.com/watch?v=T2DXrs0OpHU?vq=hd720&rel=0&showinfo=0] by Jorge Cham You might think the title is a little exaggerated, but if there's one thing I've learned from Theoretical Physicists so far, it's to be bold with my conjectures about reality. Welcome to the second installment of our series of animations about Quantum Information! After an auspicious start describing doing the impossible, this [...]

2017-01-13T10:05:51-08:00August 22nd, 2013|Real science, Reflections|40 Comments

A Quantum Adventure

[youtube=http://www.youtube.com/watch?v=1zD1U1sIPQ4?wmode=transparent&autohide=1&egm=0&hd=1&iv_load_policy=1&modestbranding=1&rel=0&showinfo=0&showsearch=0] by Jorge Cham How do you make something that has never existed before? I often get suggestions for comics I should draw, which I welcome because A) I like to think of PHD Comics as a global collaborative effort and B) after 17 years, I'm almost out of ideas. This particular suggestion came from Chen-Lung [...]

2017-01-13T10:05:47-08:00February 10th, 2014|Uncategorized|8 Comments

This Video Of Scientists Splitting An Electron Will Shock You

[youtube=http://www.youtube.com/watch?v=hKFecm9NKbM?vq=hd720&rel=0&showinfo=0] by Jorge Cham. Ok, this is where things get weird. If quantum computers, femtometer motions or laser alligators weren't enough, let's throw in fractionalized electrons, topological surfaces and strings that go to the end of time. To be honest, the idea that an electron can't be split hadn't even occurred to me before my conversation with Gil [...]

2017-01-13T10:05:37-08:00December 4th, 2014|Uncategorized, Videos|3 Comments