Certified Private Quantum Time Ticks Away Faster than Any Classical Clock

• URL: http://arxiv.org/abs/2512.09100v2
• Date: Thu, 11 Dec 2025 18:19:24 GMT
• Title: Certified Private Quantum Time Ticks Away Faster than Any Classical Clock
• Authors: Karl Svozil,
• Abstract summary: We introduce the concept of an entangled clock, where the flow of time is operationally defined by the discrete registration of measurement outcomes on a singlet state.<n>We propose a protocol for Certified Private Time, adapting device-independent randomness certification to the temporal domain.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We introduce the concept of an entangled clock, where the flow of time is operationally defined by the discrete registration of measurement outcomes on a singlet state. Comparing the synchronization rate of two such clocks against classical models, we find that at obtuse relative angles, the quantum clock ticks strictly faster than this classical benchmark. We further propose a protocol for Certified Private Time, adapting device-independent randomness certification to the temporal domain; this guarantees a sovereign timeline that ticks away faster than any local realistic mechanism allows.

Related papers

• Feedback-Induced Advantage in Quantum Clockworks [0.0]
  We introduce a framework for feedback-controlled clockworks in which classical information extracted from the tick sequence is used to influence the dynamics of the clock.<n>We prove that classical clockworks cannot surpass the optimal signal-to-noise ratio achievable without feedback.<n>For quantum clockworks we present evidence that feedback can provide a genuine performance enhancement, improving the maximal attainable signal-to-noise ratio.
  arXiv  Detail & Related papers  (2026-03-04T19:39:37Z)
• Time Symmetry, Retrocausality, and Emergent Collapse: The Tlalpan Interpretation of Quantum Mechanics [51.56484100374058]
  The Tlalpan Interpretation (QTI) proposes that the wavefunction collapse is not a primitive, axiomatic rule but an emergent phenomenon.<n>The novelty of QTI lies in its embedding of collapse within the conceptual language of critical phenomena in statistical physics.
  arXiv  Detail & Related papers  (2025-08-25T20:30:56Z)
• Powering a quantum clock with a non-equilibrium steady state [50.24983453990065]
  We propose powering a quantum clock with the non-thermal resources offered by the stationary state of an integrable quantum spin chain.<n>Using experimentally relevant examples of quantum spin chains, we suggest crossing a phase transition point is crucial for optimal performance.
  arXiv  Detail & Related papers  (2024-12-17T17:25:11Z)
• Using coherent feedback for a periodic clock [14.1128902075348]
  We introduce a novel, fully quantum clock using a driven oscillator in the quantum regime and coherent quantum feedback. We experimentally implement the model using two superconducting cavities with incorporated Josephson junctions and microwave circulators. Under specific conditions of noisy driving, we observe that the clock oscillations are more coherent than the drive, pointing towards the implementation of a quantum autonomous clock.
  arXiv  Detail & Related papers  (2024-10-30T11:34:14Z)
• Relational Dynamics with Periodic Clocks [0.0]
  We show that a relational dynamics can be established relative to periodic clocks both in the classical and quantum theories.<n>We show how a system evolving periodically with respect to a periodic clock can evolve monotonically with respect to an aperiodic clock, without inconsistency.
  arXiv  Detail & Related papers  (2024-09-10T13:07:46Z)
• A magnetic clock for a harmonic oscillator [89.99666725996975]
  We study how the quantum dynamics transforms into a classical-like behaviour when conditions related with macroscopicity are met by the clock alone. In the description of this emerging behaviour finds its place the classical notion of time, as well as that of phase-space and trajectories on it.
  arXiv  Detail & Related papers  (2023-10-20T09:55:51Z)
• Measurement events relative to temporal quantum reference frames [44.99833362998488]
  We compare two consistent approaches to the Page-Wootters formalism to clarify the operational meaning of evolution and measurements.<n>We show that for non-ideal clocks, the purified measurement approach yields a time non-local evolution equation.<n>We argue that these approaches describe operationally distinct situations.
  arXiv  Detail & Related papers  (2023-08-21T18:26:12Z)
• Causal classification of spatiotemporal quantum correlations [0.0]
  We show that certain quantum correlations possess an intrinsic arrow of time, and enable classification of general quantum correlations across space-time. Our results indicate that certain quantum correlations possess an intrinsic arrow of time, and enable classification of general quantum correlations across space-time based on their (in)compatibility with various underlying causal structures.
  arXiv  Detail & Related papers  (2023-06-15T17:59:18Z)
• Quantum time dilation in a gravitational field [39.58317527488534]
  We investigate how the superposition principle affects the gravitational time dilation observed by a simple clock. We show that the emission rate of an atom prepared in a coherent superposition of separated wave packets in a gravitational field is different from the emission rate of an atom in a classical mixture of these packets.
  arXiv  Detail & Related papers  (2022-04-22T10:02:21Z)
• Universality-of-clock-rates test using atom interferometry with $T^{3}$ scaling [63.08516384181491]
  Atomic clocks generate delocalized quantum clocks. Tests of universality of clock rates (one facet of LPI) to atom interferometry generating delocalized quantum clocks proposed. Results extend our notion of time, detached from classical and localized philosophies.
  arXiv  Detail & Related papers  (2022-04-05T12:26:56Z)
• It's About Time: Analog Clock Reading in the Wild [93.84801062680786]
  We present a framework for reading analog clocks in natural images or videos. We create a scalable pipeline for generating synthetic clocks, significantly reducing the requirements for the labour-intensive annotations. We show that the model trained on the proposed synthetic dataset generalises towards real clocks with good accuracy.
  arXiv  Detail & Related papers  (2021-11-17T14:52:02Z)
• Equivalence of approaches to relational quantum dynamics in relativistic settings [68.8204255655161]
  We show that the trinity' of relational quantum dynamics holds in relativistic settings per frequency superselection sector. We ascribe the time according to the clock subsystem to a POVM which is covariant with respect to its (quadratic) Hamiltonian.
  arXiv  Detail & Related papers  (2020-07-01T16:12:24Z)
• There is only one time [110.83289076967895]
  We draw a picture of physical systems that allows us to recognize what is this thing called "time" We derive the Schr"odinger equation in the first case, and the Hamilton equations of motion in the second one.
  arXiv  Detail & Related papers  (2020-06-22T09:54:46Z)
• Ticking-clock performance enhanced by nonclassical temporal correlations [0.0]
  We investigate the role of nonclassical temporal correlations in enhancing the performance of ticking clocks in a discrete-time scenario. We show that the problem of optimal models for ticking clocks is related to the violation of Leggett-Garg-type temporal inequalities.
  arXiv  Detail & Related papers  (2020-05-08T18:00:05Z)
• Clocks without "time" in entangled-state experiments [0.0]
  Entangled states of light exhibit measurable correlations between light detections at separated locations. These correlations are exploited in entangled-state quantum key distribution. We show how working with clocks without worrying about time makes it possible to generalize some designs for quantum key distribution.
  arXiv  Detail & Related papers  (2020-04-23T15:42:27Z)

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.