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Nearly critical superfluids in Keldysh-Schwinger formalism (2024)
Journal Article
Donos, A., & Kailidis, P. (2024). Nearly critical superfluids in Keldysh-Schwinger formalism. Journal of High Energy Physics, 2024(1), Article 110. https://doi.org/10.1007/jhep01%282024%29110

We examine the effective theory of critical dynamics near superfluid phase transitions in the framework of the Keldysh-Schwinger formalism. We focus on the sector capturing the dynamics of the complex order parameter and the conserved current corresp... Read More about Nearly critical superfluids in Keldysh-Schwinger formalism.

Nearly critical holographic superfluids (2022)
Journal Article
Donos, A., & Kailidis, P. (2022). Nearly critical holographic superfluids. Journal of High Energy Physics, 2022(12), Article 28. https://doi.org/10.1007/jhep12%282022%29028

We study the nearly critical behaviour of holographic superfluids at finite temperature and chemical potential in their probe limit. This allows us to examine the coupled dynamics of the full complex order parameter with the charge density of the sys... Read More about Nearly critical holographic superfluids.

Dissipative effects in finite density holographic superfluids (2022)
Journal Article
Donos, A., & Kailidis, P. (2022). Dissipative effects in finite density holographic superfluids. Journal of High Energy Physics, 2022(11), Article 53. https://doi.org/10.1007/jhep11%282022%29053

We derive the leading dissipative corrections of holographic superfluids at finite temperature and chemical potential by employing our recently developed techniques to study dissipative effects in the hydrodynamic limit of holographic theories. As pa... Read More about Dissipative effects in finite density holographic superfluids.

Holographic dissipation from the symplectic current (2022)
Journal Article
Donos, A., Kailidis, P., & Pantelidou, C. (2022). Holographic dissipation from the symplectic current. Journal of High Energy Physics, 2022(10), Article 58. https://doi.org/10.1007/jhep10%282022%29058

We develop analytic techniques to construct the leading dissipative terms in a derivative expansion of holographic fluids. Our basic ingredient is the Crnkovic-Witten symplectic current of classical gravity which we use to extract the dissipative tra... Read More about Holographic dissipation from the symplectic current.

Higgs/amplitude mode dynamics from holography (2022)
Journal Article
Donos, A., & Pantelidou, C. (2022). Higgs/amplitude mode dynamics from holography. Journal of High Energy Physics, 2022(8), Article 246. https://doi.org/10.1007/jhep08%282022%29246

Second order phase transitions are universally driven by an order parameter which becomes trivial at the critical point. At the same time, collective excitations which involve the amplitude of the order parameter develop a gap which smoothly closes t... Read More about Higgs/amplitude mode dynamics from holography.

Dissipation in holographic superfluids (2021)
Journal Article
Donos, A., Kailidis, P., & Pantelidou, C. (2021). Dissipation in holographic superfluids. Journal of High Energy Physics, 2021(9), Article 134. https://doi.org/10.1007/jhep09%282021%29134

We study dissipation in holographic superfluids at finite temperature and zero chemical potential. The zero overlap with the heat current allows us to isolate the physics of the conserved current corresponding to the broken global U(1). By using anal... Read More about Dissipation in holographic superfluids.

Incoherent hydrodynamics of density waves in magnetic fields (2021)
Journal Article
Donos, A., Pantelidou, C., & Ziogas, V. (2021). Incoherent hydrodynamics of density waves in magnetic fields. Journal of High Energy Physics, 2021(5), Article 270. https://doi.org/10.1007/jhep05%282021%29270

We use holography to derive effective theories of fluctuations in spontaneously broken phases of systems with finite temperature, chemical potential, magnetic field and momentum relaxation in which the order parameters break translations. We analytic... Read More about Incoherent hydrodynamics of density waves in magnetic fields.

Holographic Abrikosov lattices (2020)
Journal Article
Donos, A., Gauntlett, J. P., & Pantelidou, C. (2020). Holographic Abrikosov lattices. Journal of High Energy Physics, 2020(7), Article 095. https://doi.org/10.1007/jhep07%282020%29095

We study black hole solutions of D = 4 Einstein-Maxwell theory coupled to a charged scalar field that are holographically dual to a d = 3 conformal field theory with a non-vanishing chemical potential and constant magnetic field. We numerically const... Read More about Holographic Abrikosov lattices.

Hydrodynamics of broken global symmetries in the bulk (2019)
Journal Article
Donos, A., Martin, D., Pantelidou, C., & Ziogas, V. (2019). Hydrodynamics of broken global symmetries in the bulk. Journal of High Energy Physics, 2019(10), Article 218. https://doi.org/10.1007/jhep10%282019%29218

We consider holographic theories at finite temperature in which a continuous global symmetry in the bulk is spontaneously broken. We study the linear response of operators in a regime which is dual to time dependent, long wavelength deformations of s... Read More about Hydrodynamics of broken global symmetries in the bulk.