Non-Hermitian Holographic Flows to Little Rip Cosmologies

• URL: http://arxiv.org/abs/2607.14284v1
• Date: Wed, 15 Jul 2026 18:46:31 GMT
• Title: Non-Hermitian Holographic Flows to Little Rip Cosmologies
• Abstract summary: Spacelike singularities supported by matter satisfying the null energy condition (NEC) are expected to fall within the Belinski--Khalatnikov--Lifshitz paradigm.<n>We show that controlled violations of the NEC in holography can lead to different black hole interiors.<n>In a holographic model dual to a strongly coupled non-Hermitian $mathcalPT$-symmetric QFT, we uncover a novel non-Kasner regime within its real, $mathcalPT$-restored phase.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Spacelike singularities supported by matter satisfying the null energy condition (NEC) are expected to fall within the Belinski--Khalatnikov--Lifshitz (BKL) paradigm. We show that controlled violations of the NEC in holography can lead to different black hole interiors. In a holographic model dual to a strongly coupled non-Hermitian $\mathcal{PT}$-symmetric QFT, we uncover a novel non-Kasner regime within its real, $\mathcal{PT}$-restored phase. The deep-interior geometry describes an isotropic FLRW cosmology undergoing super-accelerated expansion and approaching a Little Rip. This regime leaves a characteristic imprint on two-sided heavy-operator correlators, allowing it to be distinguished from a standard Kasner interior. Our construction provides a concrete holographic realization of a Little Rip cosmology and lays the groundwork for a Little Rip/CFT correspondence, in which such cosmological regimes can be explored through observables in a non-Hermitian quantum field theory.

Related papers

• Quantum chaos and the holographic principle [41.99844472131922]
  We review the construction of the chaos-assisted low-dimensional holographic correspondence for non-experts.<n>We will discuss two independent 'bridges' between bulk and boundary physics.<n>We will demonstrate that the resolution of these fine-grained quantum scales requires the extension of semiclassical gravity by elements of string theory.
  arXiv  Detail & Related papers  (2026-04-14T14:19:21Z)
• Quantum Simulation of Massive Relativistic Fields in 2 + 1 Dimensions [34.61960144725398]
  We realize quantum simulation of massive relativistic fields in $2+1$ dimensions.<n>We show that, in the perturbative regime, collective field excitations exhibit a relativistic dispersion with a tuneable mass gap.<n>Our work opens possibilities for studies of cosmologically relevant phenomena including preheating, dynamics of topological defects, and relativistic false-vacuum decay.
  arXiv  Detail & Related papers  (2026-03-09T18:59:35Z)
• Non-Hermitian Exceptional Topology on a Klein Bottle Photonic Circuit [2.4987166022346625]
  Non-Hermitian physics has unlocked a wealth of unconventional wave phenomena beyond the reach of Hermitian systems.<n>We present a scalable and reconfigurable silicon photonic integrated circuit capable of emulating arbitrary non-Hermitian time evolution.<n>Our results demonstrate the first photonic realization of exceptional topology on a nonorientable manifold.
  arXiv  Detail & Related papers  (2025-12-23T11:25:43Z)
• Theory of the correlated quantum Zeno effect in a monitored qubit dimer [41.94295877935867]
  We show how the competition between two measurement processes give rise to two distinct Quantum Zeno (QZ) regimes.<n>We develop a theory based on a Gutzwiller ansatz for the wavefunction that is able to capture the structure of the Hilbert phase diagram.<n>We show how the two QZ regimes are intimately connected to the topology of the flow of the underlying non-Hermitian Hamiltonian governing the no-click evolution.
  arXiv  Detail & Related papers  (2025-03-28T19:44:48Z)
• Bound of Casimir Effect by Holography [0.0]
  We focus on the Casimir effect between parallel planes for three-dimensional conformal field theories.<n>Remarkably, ghost-free holographic models impose a universal lower bound on the Casimir effect.
  arXiv  Detail & Related papers  (2024-12-05T12:46:18Z)
• Celestial Quantum Error Correction I: Qubits from Noncommutative Klein Space [0.0]
  A holographic description via a putative 2D CFT is expected free of such redundancies.<n>In Part I we construct a toy model with finite degrees of freedom by revisiting noncommutative geometry in Kleinian hyperk"ahler spacetimes.<n>The code subspace is composed of 2-qubit stabilizer states which are robust under soft spacetime fluctuations.
  arXiv  Detail & Related papers  (2023-12-26T19:07:02Z)
• Overlapping qubits from non-isometric maps and de Sitter tensor networks [41.94295877935867]
  We show that processes in local effective theories can be spoofed with a quantum system with fewer degrees of freedom. We highlight how approximate overlapping qubits are conceptually connected to Hilbert space dimension verification, degree-of-freedom counting in black holes and holography.
  arXiv  Detail & Related papers  (2023-04-05T18:08:30Z)
• A New Look at the $C^{0}$-formulation of the Strong Cosmic Censorship Conjecture [68.8204255655161]
  We argue that for generic black hole parameters as initial conditions for Einstein equations, the metric is $C0$-extendable to a larger Lorentzian manifold. We prove it violates the "complexity=volume" conjecture for a low-temperature hyperbolic AdS$_d+1$ black hole dual to a CFT living on a ($d-1$)-dimensional hyperboloid $H_d-1$.
  arXiv  Detail & Related papers  (2022-06-17T12:14:33Z)
• Modest holography and bulk reconstruction in asymptotically flat spacetimes [0.0]
  We present a "modest" holographic reconstruction of the bulk geometry in unrelatedally flat spacetime using the two-point correlators of quantum field theory (QFT) The bulk reconstruction relies on two results: (i) there is a bulk-to-boundary type correspondence between free quantum fields living in the bulk manifold and free quantum fields living on its null boundary, and (ii) one can construct the metric by making use of the Hadamard expansion of the field living in the bulk.
  arXiv  Detail & Related papers  (2022-04-27T18:00:56Z)
• Information Scrambling Versus Quantum Revival Through the Lens of Operator Entanglement [0.0]
  We look for quantum revivals in conformal field theories on a spatially compact manifold by using operator entanglement. We propose a modification of an effective model known as the line tension picture to explain the entanglement dynamics due to the strong scrambling effect.
  arXiv  Detail & Related papers  (2021-12-01T19:48:44Z)
• Quantum anomalous Hall phase in synthetic bilayers via twistless twistronics [58.720142291102135]
  We propose quantum simulators of "twistronic-like" physics based on ultracold atoms and syntheticdimensions. We show that our system exhibits topologicalband structures under appropriate conditions.
  arXiv  Detail & Related papers  (2020-08-06T19:58:05Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.