Communication scenario enables robust self-testing of n-party Greenberger-Horne-Zeilinger basis measurements

• URL: http://arxiv.org/abs/2508.21178v1
• Date: Thu, 28 Aug 2025 19:32:35 GMT
• Title: Communication scenario enables robust self-testing of n-party Greenberger-Horne-Zeilinger basis measurements
• Authors: Barnik Bhaumik, Sagnik Ray, Debashis Saha,
• Abstract summary: Entangled basis measurements play a crucial role in distributing quantum entanglement between parties across a quantum network.<n>In this work, we adopt a semi-device-independent approach that enables the self-testing of n-qubit Greenberger-Horne-Zeilinger basis measurements.
• Score: 0.688204255655161
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Entangled basis measurements play a crucial role in distributing quantum entanglement between parties across a quantum network. In this work, we adopt a semi-device-independent approach that enables the self-testing of n-qubit Greenberger-Horne-Zeilinger (GHZ) basis measurements without requiring shared entanglement between distant parties. Our method relies solely on input-output statistics from a communication scenario involving n spatially separated senders, each receiving two bits of input, and a single receiver with no input. We analyze the robustness of the proposed self-testing protocol. Additionally, we introduce a protocol for robust self-testing of the three-outcome partial Bell basis measurement that is easily implementable in an optical setup.

Related papers

• Almost device-independent calibration beyond Born's rule: Bell tests for cross-talk detection [0.0]
  Device-independent protocols offer a new approach to information processing tasks.<n>We demonstrate how to test premises in an (almost) device-independent setting.<n>For IBM's quantum computing cloud services, we implement the prediction-based ratio protocol.
  arXiv  Detail & Related papers  (2025-03-24T17:59:58Z)
• Device-independent secure correlations in sequential quantum scenarios [44.99833362998488]
  Device-independent quantum information is attracting significant attention, particularly for its applications in information security.<n>We propose a systematic approach to designing sequential quantum protocols for device-independent security.<n>We analytically prove that, with this systematic construction, the resulting ideal correlations are secure in the sense that they cannot be reproduced as a statistical mixture of other correlations.
  arXiv  Detail & Related papers  (2025-03-18T16:45:20Z)
• Quantum-private distributed sensing [37.69303106863453]
  Quantum networks will provide unconditional security for communication, computation and distributed sensing tasks. We report on an experimental demonstration of private parameter estimation, which allows a global phase to be evaluated without revealing the constituent local phase values. This is achieved by sharing a Greenberger-Horne-Zeilinger (GHZ) state among three users who first verify the shared state before performing the sensing task.
  arXiv  Detail & Related papers  (2024-10-01T18:00:08Z)
• Orthogonal-state-based Measurement Device Independent Quantum Communication [32.244698777387995]
  We propose a new protocol of measurement-device-independent quantum secure direct communication and quantum dialogue employing single basis, i.e., Bell basis as decoy qubits for eavesdropping detection. Our protocols leverage fundamentally distinct resources to close the security loopholes linked to measurement devices, while also effectively doubling the distance for secure direct message transmission.
  arXiv  Detail & Related papers  (2024-09-30T15:57:17Z)
• Measurement-Device-Independent Detection of Beyond-Quantum State [53.64687146666141]
  We propose a measurement-device-independent (MDI) test for beyond-quantum state detection. We discuss the importance of tomographic completeness of the input sets to the detection.
  arXiv  Detail & Related papers  (2023-12-11T06:40:13Z)
• A universal scheme to self-test any quantum state and extremal measurement [41.94295877935867]
  quantum network considered in this work is the simple star network, which is implementable using current technologies. For our purposes, we also construct a scheme that can be used to self-test the two-dimensional tomographically complete set of measurements with an arbitrary number of parties.
  arXiv  Detail & Related papers  (2023-12-07T16:20:28Z)
• Correcting for finite statistics effects in a quantum steering experiment [33.013102271622614]
  We introduce a one-sided device-independent protocol that corrects for apparent signaling effects in experimental probability distributions.<n>Our results show a significantly higher probability of violation than existing state-of-the-art inequalities.<n>This work demonstrates the power of semidefinite programming for entanglement verification and brings quantum networks closer to practical applications.
  arXiv  Detail & Related papers  (2023-05-23T14:39:08Z)
• Phase-Matching Quantum Key Distribution without Intensity Modulation [25.004151934190965]
  We propose a phase-matching quantum key distribution protocol without intensity modulation. Simulation results show that the transmission distance of our protocol could reach 305 km in telecommunication fiber. Our protocol provides a promising solution for constructing quantum networks.
  arXiv  Detail & Related papers  (2023-03-21T04:32:01Z)
• Continuous-variable measurement device independent quantum conferencing with post-selection [0.0]
  We derive the rate of the protocol under a collective pure-loss attack. In the symmetric configuration in which all the parties lie the same distance from the relay, we find a positive key rate over 6 km. Such postselection techniques can be used to improve the rate of multi-party quantum conferencing protocols at longer distances.
  arXiv  Detail & Related papers  (2022-03-28T11:16:57Z)
• Semi-device-independent full randomness amplification based on energy bounds [0.0]
  Quantum Bell nonlocality allows for the design of protocols that amplify the randomness of public and arbitrarily biased Santha-Vazirani sources. We prove that full randomness amplification can be achieved without requiring a complete characterization of entanglement states and measurements.
  arXiv  Detail & Related papers  (2021-08-20T10:34:01Z)
• Bell nonlocality is not sufficient for the security of standard device-independent quantum key distribution protocols [1.9573380763700712]
  Device-independent quantum key distribution is a secure quantum cryptographic paradigm that allows two honest users to establish a secret key. We show that no protocol of this form allows for establishing a secret key when implemented on any correlation obtained by measuring local projective measurements.
  arXiv  Detail & Related papers  (2021-03-03T19:10:06Z)
• Self-testing of a single quantum device under computational assumptions [7.716156977428555]
  Self-testing is a method to characterise an arbitrary quantum system based only on its classical input-output correlations. We replace the setting of multiple non-communicating parties, which is difficult to enforce in practice, by a single computationally bounded party.
  arXiv  Detail & Related papers  (2020-01-24T19:00:15Z)

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.