Theory

Category archives for Theory

There’s a new Science Express paper on interfering clocks today, which is written up in Physics World, with comments from yours truly. The quote is from a much longer message I sent– with no expectation that it would end up as anything other than a pull quote, I might add, but I thought the background…

My Week in Waterloo

I spent the last few days in Ontario, attending the Convergence meeting at the Perimeter Institute. This brought a bunch of Perimeter alumni and other big names together for a series of talks and discussions about the current state and future course of physics. My role at this was basically to impersonate a journalist, and…

I was proctoring an exam yesterday in two different sections of the same class, so I had a lot of quite time. Which means I wrote not one but two new posts for Forbes… The first continues a loose series of posts about the exotic physics behind everyday objects (something I’m toying with as a…

I’ve been sort of falling down on my obligation to promote myself– I’ve written two blog posts for Forbes this week, and forgotten to post about them here. The first is a thing about philosophy in physics, and how Einstein illustrates both the good and bad aspects of a philosophical approach. The second is a…

The editor at Forbes suggested I should write something about the re-start of the Large Hadron Collider, so I did. But being me, I couldn’t just do an “LHC, yay!” post, but talk about it in a larger context, as one of three major approaches to filling the gaps in the Standard Model: The big…

Both Roads Taken

Two roads diverged in a yellow wood, And caused me no small amount of panic For traveling both of them would be good But there simply was no way I could Until I remembered quantum mechanics. So half my wavefunction I sent left And rightward steered the other half Both pieces of me with equal…

Many Worlds Are Never Exhausted

There have been some good comments on last week’s post about the Many-Worlds Interpretation, which I find a little surprising, as it was thrown together very quickly and kind of rant-y on my part, because I was annoyed by the tone of the original Phillip Ball article. (His follow-up hasn’t helped that…) But then maybe…

Phillip Ball has a long aggrieved essay about the Many-Worlds Interpretation, which is, as Sean Carroll notes, pretty bad. Ball declares that Many-Worlds is “incoherent, both philosophically and logically,” but in fact, he’s got this exactly backwards: Many-Worlds is, in fact, a marvel of logical and philosophical coherence, while Ball’s objections are incoherent and illogical.…

Science Story: Not a Bath House

(When I launched the Advent Calendar of Science Stories series back in December, I had a few things in mind, but wasn’t sure I’d get through 24 days. In the end, I had more than enough material, and in fact didn’t end up using a few of my original ideas. So I’ll do a few…

Science Story: Impossible Conditions

(When I launched the Advent Calendar of Science Stories series back in December, I had a few things in mind, but wasn’t sure I’d get through 24 days. In the end, I had more than enough material, and in fact didn’t end up using a few of my original ideas. So I’ll do a few…