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HNQ
1:13 AM
2
Q: Two values of Rydberg Constant

Curious GuyIn my textbook I came across two values of Rydberg Constant: \begin{align} R&= 109\,677\ \mathrm{cm}^{-1} \\ R_h&= 2.18 × 10^{-18}\ \mathrm J \end{align} when we are calculating energy of the stationary state. So can anyone clear this confusion of mine?

 
4 hours later…
HNQ
HNQ
5:26 AM
2
Q: Clarifying the definition of pressure in statistical physics

Sangchul LeeI am studying David Tong's lecture note on statistical physics, and I have a question regarding the precise definition of pressure. I checked other postings in this community, but was unable to get the answer. Also, apologies for this absurdly long question. If you feel this question is too long,...

 
4 hours later…
HNQ
HNQ
9:20 AM
3
Q: Higgs mechanism and mass gap in the Standard Model - asking for some clarification

KeithHiggs mechanism is known to give "mass" to gauge bosons, especially in electroweak theory where the gauge group is given by $SU(2) \times U(1)$. However, as in this PE post or the statement of the mass gap problem, even a pure YM theory without a Higgs field is expected to have a mass gap. Now, I...


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