Cosmological frequency combs

Trivedi, Oem

doi:10.1209/0295-5075/ae55c4

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Cosmological frequency combs

2026-05-01

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Trivedi, Oem

Mishra, Madhurendra

Ganesan, Adarsh *

DOI：10.1209/0295-5075/ae55c4

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Abstract

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We identify a new class of time-periodic attractor solutions in scalar-field cosmology, which we term Cosmological Frequency Combs (CFC). These solutions arise in exponential quintessence models with a phantom matter background and exhibit coherent phase-locked oscillations in the scalar field's normalized variables. We demonstrate that such dynamics induce modulations in observables like the Hubble parameter and growth rate, offering a dynamical mechanism to even address the H-0 tension exactly. Our results uncover a previously unexplored phase of cosmic acceleration, linking the concept of frequency combs to large-scale cosmological evolution. open access Copyright (c) 2026 The author(s)

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university of delhi

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birla institute of technology and science pilani- dubai

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