The lessons we learned from the Ryu-Takayanagi formula, the firewall paradox and the ER=EPR conjecture have convinced us that quantum information theory can become a powerful tool to sharpen our understanding of various problems in high-energy physics. 1,861 more words

## Tags » Theoretical Highlights

#### Putting back the pieces of a broken hologram

It is Monday afternoon and the day seems to be a productive one, if not yet quite memorable. As I revise some notes on my desk, Beni Yoshida walks into my office to remind me that the high-energy physics seminar is about to start. 790 more words

#### Always look on the bright side...of CPTP maps.

Once upon a time, I worked with a postdoc who shaped my views of mathematical physics, research, and life. Each week, I’d email him a PDF of the calculations and insights I’d accrued. 589 more words

#### Democrat plus Republican over the square-root of two

I wish I could superpose votes on Election Day.

However much I agree with Candidate A about social issues, I dislike his running mate. I lean toward Candidate B’s economic plans and C’s science-funding record, but nobody’s foreign policy impresses me. 548 more words

#### Bell's inequality 50 years later

This is a jubilee year.* In November 1964, John Bell submitted a paper to the obscure (and now defunct) journal *Physics*. That paper, entitled “On the Einstein Podolsky Rosen Paradox,” changed how we think about quantum physics. 1,002 more words

#### I spy with my little eye…something algebraic.

Look at this picture.

Does any part of it surprise you? Look more closely.

Now? Try crossing your eyes.

Do you see a boy’s name? 409 more words

#### Generally speaking

My high-school calculus teacher had a mustache like a walrus’s and shoulders like a rower’s. At 8:05 AM, he would demand my class’s questions about our homework. 679 more words