Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Zan, Bernardo"'
We study quantum field theories which have quantum groups as global internal symmetries. We show that in such theories operators are generically non-local, and should be thought as living at the ends of topological lines. We describe the general cons
Externí odkaz:
http://arxiv.org/abs/2410.24142
We study a conformal field theory that arises in the infinite-volume limit of a spin chain with $U_q(sl_2)$ global symmetry. Most operators in the theory are defect-ending operators which allows $U_q(sl_2)$ symmetry transformations to act on them in
Externí odkaz:
http://arxiv.org/abs/2410.24143
Publikováno v:
Phys. Rev. Lett. 132, 031603 (2024)
We examine the phase structure of the two-flavor Schwinger model as a function of the $\theta$-angle and the two masses, $m_1$ and $m_2$. In particular, we find interesting effects at $\theta=\pi$: along the $SU(2)$-invariant line $m_1 = m_2 = m$, in
Externí odkaz:
http://arxiv.org/abs/2305.04437
We revisit the lattice formulation of the Schwinger model using the Kogut-Susskind Hamiltonian approach with staggered fermions. This model, introduced by Banks et al., contains the mass term $m_{\rm lat} \sum_{n} (-1)^{n} \chi^\dagger_n \chi_n$, and
Externí odkaz:
http://arxiv.org/abs/2206.05308
We study the mass-deformed sphere free energy of three-dimensional $\mathcal{N} = 2$ superconformal field theories with holographic duals. Building on previous observations, we conjecture a proportionality relation between the sphere free energy on t
Externí odkaz:
http://arxiv.org/abs/2112.06931
We study which bulk couplings contribute to the $S^3$ free energy $F(\mathfrak{m})$ of three-dimensional ${\cal N} = 2$ superconformal field theories with holographic duals, potentially deformed by boundary real-mass parameters $\mathfrak{m}$. In par
Externí odkaz:
http://arxiv.org/abs/2107.12382
Autor:
Gorbenko, Victor, Zan, Bernardo
We study O(n)-symmetric two-dimensional conformal field theories (CFTs) for a continuous range of n below two. These CFTs describe the fixed point behavior of self-avoiding loops. There is a pair of known fixed points connected by an RG flow. When n
Externí odkaz:
http://arxiv.org/abs/2005.07708
Autor:
Paulos, Miguel F., Zan, Bernardo
We apply recently constructed functional bases to the numerical conformal bootstrap for 1D CFTs. We argue and show that numerical results in this basis converge much faster than the traditional derivative basis. In particular, truncations of the cros
Externí odkaz:
http://arxiv.org/abs/1904.03193
Publikováno v:
SciPost Phys. 5, 050 (2018)
We study complex CFTs describing fixed points of the two-dimensional $Q$-state Potts model with $Q>4$. Their existence is closely related to the weak first-order phase transition and walking RG behavior present in the real Potts model at $Q>4$. The P
Externí odkaz:
http://arxiv.org/abs/1808.04380
We discuss walking behavior in gauge theories and weak first-order phase transitions in statistical physics. Despite appearing in very different systems (QCD below the conformal window, the Potts model, deconfined criticality) these two phenomena bot
Externí odkaz:
http://arxiv.org/abs/1807.11512