Lightcone Hamiltonian for Ising field theory I: $T < T_c$
We study 2d Ising Field Theory (IFT) in the low-temperature phase in lightcone quantization, and show that integrating out zero modes generates a very compact form for the effective lightcone interaction that depends on the finite volume vacuum expectation value of the $\sigma$ operator. This form i...
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| Format: | Article |
| Language: | English |
| Published: |
SciPost
2025-06-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.18.6.179 |
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