6,099 reputation
1643
bio website jfitzsimons.org
location Singapore, Singapore
age 32
visits member for 3 years, 10 months
seen Dec 6 '13 at 16:11

I have just moved to the Center for Quantum Technologies in Singapore, after spending the last 3 years as a Merton College JRF in Theoretical Physics and a Senior Research Fellow in Oxford University Department of Materials. My research focuses largely on theoretical aspects of quantum information processing. In particular I am interested in spin networks, measurement based computation, cryptography and computational complexity.


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awarded  Enlightened
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awarded  Enlightened
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awarded  Nice Question
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awarded  Student
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awarded  Scholar
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awarded  Good Question
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comment What can the D-Wave quantum computer do?
@episanty: That is true of every problem in PSPACE. It might be that P=PSPACE, but we're pretty sure it's not true. But again, the only real evidence is that we can't prove equality.
Apr
18
comment Higgs mass and the hierarchy problem
I fixed your latex. You can include it yourself by enclosing it in dollar signs (like an inline equation in latex).
Apr
18
comment partial trace with sparse matrices
In general, a partial trace of a sparse matrix does not yield a sparse matrix, so you will get only limited improvement by using the fact that the matrix is sparse (maybe a factor of d/s).
Apr
17
comment Advice on doing physics under the umbrella of mathematics and the converse
@Moshe: Maybe. I've no idea what the true distribution is like. My sample size is relatively small (10 or 12) and is not all that geographically diverse.
Apr
15
answered Advice on doing physics under the umbrella of mathematics and the converse
Apr
15
comment Advice on doing physics under the umbrella of mathematics and the converse
Most string theorists I know are in Mathematics departments.
Apr
14
comment What is the physical difference between states and unital completely positive maps?
No problem. Hope it helps.