qftintegrals

Some Useful Integrals In Quantum Field Theory

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In my paper on renormalisation I mentioned what most who have…
arrowoftime

Retrocausality: How Fundamental is the Arrow of Time?

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In this Insight, I'll discuss a recent experiment ([1]  [2]…
research work

Initiating Research Work

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    It has been a while since the last installment…
perbation theory

Causal Perturbation Theory

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Relativistic quantum field theory is notorious for the occurrence…
cheshirecat

Weak Values Part 2: The Quantum Cheshire Cat Experiment

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In a previous Insight, Weak Values Part 1: "Asking Photons Where…
askingphotons

Weak Values Part 1: "Asking Photons Where They Have Been"

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In a previous Insight on retrocausality, I explained an experiment…
negative temperature

Negative absolute temperatures

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It's a famous result in thermodynamics that you can't reach absolute…
What is Energy

What is Energy?

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What is energy? For some reason, this perfectly legitimate…
LHC

LHC Part 3: Protons as Large as a Barn

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  See also part 1 and part 2 of the series. The…
earth year

Measuring How Many Days Are in a Year

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How many days are there in a year? Ask pretty much anyone and…
redlights

The Greenberger-Horne-Zeilinger Experiment

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In two previous Insights, I shared Mermin's explanation of…
mermin

The Quantum Liar Experiment: An Instantiation of the Mermin Device

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In 1981, Mermin published a paper[1], "Bringing home the atomic…
classroom

Some Sins in Physics Didactics

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Introduction There are many sins in physics didactics. Usually…

LHC Part 2: Commissioning

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  Last month, I wrote a FAQ about working at the…