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1 Erratum to: Eur. Phys. J. C (2019) 79:550 https://doi.org/10.1140/epjc/s10052-019-7068-x
In this Erratum we correct some numerical coefficients for the low-energy effective action we obtained in our paper [1].
- 1.
The Eq. (37) must be read as:
$$\begin{aligned} \mathcal{L}_\mathrm {eff}= & {} \frac{g_t^2}{2}A_0A^0 -\frac{{{\tilde{\alpha }}}_2}{2} \left( \partial _0A_i\partial ^0A^i-\frac{6}{5}\partial _0A_i\partial ^iA^0\nonumber \right. \\&\left. -\frac{6}{5}\partial _iA_0\partial ^0A^i+\frac{36}{25}\partial _iA_0\partial ^iA^0 \right) \nonumber \\&-\frac{{{\tilde{\alpha }}}_5m^4}{2}(\partial _iA_j\partial ^iA^j-\partial _iA_j\partial ^jA^i)\nonumber \\&-\frac{9{{\tilde{\alpha }}}_2}{50}\partial _iA_0\partial ^iA^0-\frac{{{\tilde{\beta }}} m^4e^2}{4}\left( A_iA^i-\frac{a_ia^i}{e^2}\right) ^2,\nonumber \\ \end{aligned}$$(37) - 2.
The Eqs. (41–44) must be read as:
$$\begin{aligned} A_0\rightarrow & {} \frac{5m{{\tilde{\alpha }}}_5^{1/4}}{6{{\tilde{\alpha }}}_2^{1/2}}A_0, \end{aligned}$$(41a)$$\begin{aligned} A_i\rightarrow & {} \frac{1}{m{{\tilde{\alpha }}}_5^{1/4}}A_i, \end{aligned}$$(41b)$$\begin{aligned} \partial _0\rightarrow & {} \frac{m^2{{\tilde{\alpha }}}_5^{1/4}}{{{\tilde{\alpha }}}_2^{1/2}}\partial _0, \end{aligned}$$(41c)$$\begin{aligned} \partial _i\rightarrow & {} \frac{1}{{{\tilde{\alpha }}}_5^{1/4}}\partial _i, \end{aligned}$$(41d)
None of physical conclusions of our paper are changed under these corrections.
Reference
T. Mariz, R. Moreira, A.Yu. Petrov, Eur. Phys. J. C 79, 550 (2019)
Acknowledgements
This work was partially supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq). The work by A. Yu. P. has been partially supported by the CNPq project 303783/2015-0.
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Mariz, T., Moreira, R. & Petrov, A.Y. Erratum to: Emergent gauge bosons and dynamical symmetry breaking in a four-fermion Lifshitz model. Eur. Phys. J. C 79, 729 (2019). https://doi.org/10.1140/epjc/s10052-019-7243-0
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DOI: https://doi.org/10.1140/epjc/s10052-019-7243-0