An agnostic-Dolinar receiver for coherent states classification

• URL: http://arxiv.org/abs/2106.11909v1
• Date: Tue, 22 Jun 2021 16:35:42 GMT
• Title: An agnostic-Dolinar receiver for coherent states classification
• Authors: Fabio Zoratti, Nicola Dalla Pozza, Marco Fanizza, Vittorio Giovannetti
• Abstract summary: We consider the problem of discriminating quantum states, where the task is to distinguish two different quantum states with a complete classical knowledge about them. In the case the quantum states are represented by coherent states of light, we identify intermediate scenarios where partial prior information is available.
• Score: 2.6763498831034034
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: We consider the problem of discriminating quantum states, where the task is to distinguish two different quantum states with a complete classical knowledge about them, and the problem of classifying quantum states, where the task is to distinguish two classes of quantum states where no prior classical information is available but a finite number of physical copies of each classes are given. In the case the quantum states are represented by coherent states of light, we identify intermediate scenarios where partial prior information is available. We evaluate an analytical expression for the minimum error when the quantum states are opposite and a prior on the amplitudes is known. Such a threshold is attained by complex POVM that involve highly non-linear optical procedure. A suboptimal procedure that can be implemented with current technology is presented that is based on a modification of the conventional Dolinar receiver. We study and compare the performance of the scheme under different assumptions on the prior information available.

Related papers

• Latent optical nonclassicality of conditionally-prepared states [0.0]
  Nonclassical steering is a class of quantum correlations beyond quantum entanglement and quantum discord. We develop a technique that overcomes the limitation for single-mode quantum states conditionally prepared through measurements on another mode of a two-mode state.
  arXiv  Detail & Related papers  (2024-08-08T19:49:25Z)
• Data Processing Inequality for The Quantum Guesswork [4.956709222278243]
  Non-orthogonal quantum states cannot be distinguished with absolute certainty. Quantum guesswork has emerged as a crucial measure in assessing the distinguishability of non-orthogonal quantum states.
  arXiv  Detail & Related papers  (2024-07-22T19:42:16Z)
• Superselection rules and bosonic quantum computational resources [0.0]
  We identify and classify quantum optical non-classical states as classical/non-classical based on the resources they create on a bosonic quantum computer. Our work contributes to establish a seamless transition from continuous to discrete properties of quantum optics.
  arXiv  Detail & Related papers  (2024-07-03T14:18:41Z)
• 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)
• Benchmarking machine learning models for quantum state classification [0.0]
  We develop a model to classify the measured state by discriminating the ground state from the excited state. We benchmark multiple classification techniques applied to real quantum devices.
  arXiv  Detail & Related papers  (2023-09-14T12:45:20Z)
• Quantum state inference from coarse-grained descriptions: analysis and an application to quantum thermodynamics [101.18253437732933]
  We compare the Maximum Entropy Principle method, with the recently proposed Average Assignment Map method. Despite the fact that the assigned descriptions respect the measured constraints, the descriptions differ in scenarios that go beyond the traditional system-environment structure.
  arXiv  Detail & Related papers  (2022-05-16T19:42:24Z)
• Improved Quantum Algorithms for Fidelity Estimation [77.34726150561087]
  We develop new and efficient quantum algorithms for fidelity estimation with provable performance guarantees. Our algorithms use advanced quantum linear algebra techniques, such as the quantum singular value transformation. We prove that fidelity estimation to any non-trivial constant additive accuracy is hard in general.
  arXiv  Detail & Related papers  (2022-03-30T02:02:16Z)
• Efficient Bipartite Entanglement Detection Scheme with a Quantum Adversarial Solver [89.80359585967642]
  Proposal reformulates the bipartite entanglement detection as a two-player zero-sum game completed by parameterized quantum circuits. We experimentally implement our protocol on a linear optical network and exhibit its effectiveness to accomplish the bipartite entanglement detection for 5-qubit quantum pure states and 2-qubit quantum mixed states.
  arXiv  Detail & Related papers  (2022-03-15T09:46:45Z)
• Algorithm and Circuit of Nesting Doubled Qubits [3.6296396308298795]
  Copying quantum states is contradictory to classical information processing. This paper investigates the naturally arising question of how well or under what conditions one can copy and measure an arbitrary quantum superposition of states.
  arXiv  Detail & Related papers  (2022-01-01T23:14:44Z)
• Quantum Discrimination of Two Noisy Displaced Number States [68.2727599930504]
  We first consider the quantum discrimination of two noiseless displaced number states. We then address the problem of discriminating between two noisy displaced number states.
  arXiv  Detail & Related papers  (2020-12-09T16:56:16Z)
• Bose-Einstein condensate soliton qubit states for metrological applications [58.720142291102135]
  We propose novel quantum metrology applications with two soliton qubit states. Phase space analysis, in terms of population imbalance - phase difference variables, is also performed to demonstrate macroscopic quantum self-trapping regimes.
  arXiv  Detail & Related papers  (2020-11-26T09:05:06Z)

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.