A collection of my most cited research papers, and a selection of my books.
A Multiparticle Generalization of Entanglement Swapping
We generalize the procedure of entanglement swapping to obtain a scheme for manipulating entanglement in multiparticle systems. We describe how…
Entanglement in many-body systems
The recent interest in aspects common to quantum information and condensed matter has prompted a flory of activity at the…
The Quantum Double Slit Experiment With Local Elements of Reality
We present a fully local treatment of the double slit experiment in the formalism of quantum field theory. Our exposition…
Classical, quantum and total correlations
We discuss the problem of separating consistently the total correlations in a bipartite quantum state into a quantum and a…
We present conditions every measure of entanglement has to satisfy, and construct a whole class of “good” entanglement measures. The…
How Much of Mathematics is Really Just Physics?
I’d like to dedicate this short piece to my late friend Prof. Peter T. Landsberg, who was a “thermodynamicist” (this is how he liked to call himself). I used to meet him at the Athenaeum, in the good old days when smoking cigars was still allowed indoors.
Absolute zero is the lowest temperature but is there an upper limit?
There are a number of arguments as to why there should be an upper bound on the value of temperature. The simplest is that temperature is related to energy (via Boltzmann’s constant). So if we believe that the energy in the universe is finite (a reasonable supposition), then that gives us the highest temperature.
The World Exists Only When No One is Looking
One particular misconception that is ever-present is captured by the statement that quantum physics suggests that “the moon is not there when nobody looks”. This is a riff on the old musings of Bishop Berkeley who asked whether a tree falling in the forest makes a sound if there is no one there to hear it.
ASK ME A QUESTION!
If you'd like to ask me a question or discuss my research then please get in touch.