Saturday, November 07, 2015

Postgraduate Journal 3.12.6

Faithside: This semester has actually been pretty good on my side, despite the emotional low point miasma that stuck around when the semester started and I hauled ass right back to the school residence. Part of this is because I resumed my old practice of joining daily mass in the church across the road from my residence hall. I first joined (and committed to) daily mass in a panic during a particulary severe depression pang when I was working in Nebraska, whereafter the affliction was cured within two weeks. For this I credit the very reassuring presence of Jesus in the tabernacles and also the connections that I have built with members of the Nebraskan and Singaporean faithful who have stayed by my side and have been real champs. In November the church remembers the faithful departed and I have found joy in telling people the story of Tina and keeping her in the realms of the remembered. I am also especially grateful to Amanda and co. and their newly-fromed Ubi Caritas group in Yale-NUS College, a place where the spirit of rigorous enquiry and willingness to tackle big scary questions of faith has been nurtured and maintained. Guys, if you are reading this, I heart you all; this semester is gone too soon!

In other news, (1) daily Rosary was instated on the NUSCSS side, to the point that a small group of us, myself included, are doing it out of sheer force of habit. October was the month of the Rosary, not November, but it does not seem to matter any more to the diehards. (2) I have started a three-year programme of marking daily readings in the bible, because I heard an extraordinary claim that church readings cover the entire bible in three years, and I just have to see if that is really the case.

Scienceside: I have now a co-supervisor from Physics, a very kind and agreeable old professor dude, and am now caught in the thickets of computational physics. I actually prefer being snagged in the brambles of calculation than sucked into the quicksands of experimentation. One reason for this was that experimental people I have had to work with seemed to have scant interest in finding out how things actually work, and seemed to be bent on making things work by sheer power of will and by working themselves into a state of delirium (in which case anything at all can be thought plausible). The more important reason was that I sucked at experimental work while at the same time was passably good at calculation, having dabbled in computational techniques since my undergrad days. But even then, calculations sometimes don't work, and in fact at this moment none of my projects are working, and I have increasingly found myself compelled to cram undergraduate theoretical physics in order to understand the inner workings of my software, with its myriad weird error messages, (contra)indications, and acrobatic tricks.

I have been taking a course where I have learned to do computational physics from scratch. It started with some simple linear algebra and then swiftly degenerated into a mad scramble to write a working program with C that does high-powered stuff like Quantum Monte Carlo and the Metropolis Algorithm on Ising models and Schrodinger Equation solvers. Sad to admit but sometimes I fail to produce a working code (the Hydrogen molecule project has been especially disastrous), and the physics students are all pwning my arse at every turn. But I am positive, because my stated mission for this PhD adventure is to punch way above my weight, and this semester shall be no exception.

My first attempt at Monte-Carlo

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