Recent content by HungryBunny

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    I Phase diagram of MI/SF transition Bose-Hubbard model

    Hi all, I am currently doing an undergraduate research project on the Bose-Hubbard model with hardcore bosons, and I am studying it theoretically using the Monte Carlo Stochastic Series Expansion method. I would very much like to ask my supervisor this question, but he seems extremely busy...
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    I Mass in Special Relativity: Misconception or Reality?

    Ah, these two explanations make a lot of sense. Thank you for them! May I ask 2 more questions? 1. In an isolated system of particles, the conservation of momenergy is actually equivalent to both the conservation of energy and momentum separately? i.e In picturing the momenergy 4-vector as a...
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    I Mass in Special Relativity: Misconception or Reality?

    Hi PhysicsForum, I'm currently reading Spacetime Physics by Taylor and Wheeler and I can't wrap my head around the concept of mass in SR. In the textbook, mass is described as the magnitude of the momenergy 4-vector and is invariant no matter which inertial reference frame you choose. So does...
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    Why not use electricity directly instead of hydrogen

    Hi PhysicsForums, I'm asking this as part of a small research project of mine in exploring hydrogen as an alternative energy source to fossil fuels. Based on my limited understanding, hydrogen is a good alternative to fossil fuels (especially in cars) because the only waste product is water...
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    Schools Undergraduate in university with no astronomy

    I come from a small country (Singapore) and there are only two main universities that offer Physics. One I am in, and while the other does have a small astrophysics group, it is nothing spectacular and if I am not wrong, there are no telescopes or any astronomical facilities anyway. Singapore's...
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    Schools Undergraduate in university with no astronomy

    Would the lack of research in the same field as your intended PhD area of study significantly affect the way the admission committee view your application? As far as I could tell, when I took a look at publicly available CVs of PhD students in top US programs like Caltech, most if not all did...
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    Schools Undergraduate in university with no astronomy

    Hi everyone, I'm matriculating at a local university in Physics in a few months and my ultimate goal is to do a PhD in astronomy/astrophysics at a reputable US university after I graduate. I am aware research experience as an undergraduate is paramount in securing a good PhD spot and I have...
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