Detection of quantum signals free of classical noise via quantum correlation

• URL: http://arxiv.org/abs/2302.13530v1
• Date: Mon, 27 Feb 2023 05:53:54 GMT
• Title: Detection of quantum signals free of classical noise via quantum correlation
• Authors: Yang Shen, Ping Wang, Chun Tung Cheung, Joerg Wachtrup, Ren-Bao Liu, Sen Yang
• Abstract summary: Conventional noise filtering methods rely on different patterns of signal and noise in frequency or time domains. We propose a signal-nature-based (not signal-pattern-based) approach which singles out a quantum signal from its classical noise background.
• Score: 11.77683787875381
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Extracting useful signals is key to both classical and quantum technologies. Conventional noise filtering methods rely on different patterns of signal and noise in frequency or time domains, thus limiting their scope of application, especially in quantum sensing. Here, we propose a signal-nature-based (not signal-pattern-based) approach which singles out a quantum signal from its classical noise background by employing the intrinsic quantum nature of the system. We design a novel protocol to extract the Quantum Correlation signal and use it to single out the signal of a remote nuclear spin from its overwhelming classical noise backgrounds, which is impossible to be accomplished by conventional filter methods. Our work demonstrates the quantum/classical nature as a new degree of freedom in quantum sensing. The further generalization of this quantum nature-based method opens a new direction in quantum research.

Related papers

• Classical Capacity of Arbitrarily Distributed Noisy Quantum Channels [11.30845610345922]
  We study the impact of a mixture of classical and quantum noise on an arbitrary quantum channel carrying classical information. We formulate the achievable channel capacity over an arbitrary distributed quantum channel in presence of the mixed noise.
  arXiv  Detail & Related papers  (2023-06-28T11:14:12Z)
• Quantum Channel Modelling by Statistical Quantum Signal Processing [9.2104922520782]
  We are interested to model quantum signal by statistical signal processing methods. In this paper we use the channel equation in terms of random variable to investigate the quantum signals and noise model statistically.
  arXiv  Detail & Related papers  (2023-02-09T12:02:13Z)
• Suppressing Amplitude Damping in Trapped Ions: Discrete Weak Measurements for a Non-unitary Probabilistic Noise Filter [62.997667081978825]
  We introduce a low-overhead protocol to reverse this degradation. We present two trapped-ion schemes for the implementation of a non-unitary probabilistic filter against amplitude damping noise. This filter can be understood as a protocol for single-copy quasi-distillation.
  arXiv  Detail & Related papers  (2022-09-06T18:18:41Z)
• Optimal quantum control via genetic algorithms for quantum state engineering in driven-resonator mediated networks [68.8204255655161]
  We employ a machine learning-enabled approach to quantum state engineering based on evolutionary algorithms. We consider a network of qubits -- encoded in the states of artificial atoms with no direct coupling -- interacting via a common single-mode driven microwave resonator. We observe high quantum fidelities and resilience to noise, despite the algorithm being trained in the ideal noise-free setting.
  arXiv  Detail & Related papers  (2022-06-29T14:34:00Z)
• Interactive Protocols for Classically-Verifiable Quantum Advantage [46.093185827838035]
  "Interactions" between a prover and a verifier can bridge the gap between verifiability and implementation. We demonstrate the first implementation of an interactive quantum advantage protocol, using an ion trap quantum computer.
  arXiv  Detail & Related papers  (2021-12-09T19:00:00Z)
• The Hintons in your Neural Network: a Quantum Field Theory View of Deep Learning [84.33745072274942]
  We show how to represent linear and non-linear layers as unitary quantum gates, and interpret the fundamental excitations of the quantum model as particles. On top of opening a new perspective and techniques for studying neural networks, the quantum formulation is well suited for optical quantum computing.
  arXiv  Detail & Related papers  (2021-03-08T17:24:29Z)
• Filter Function Formalism and Software Package to Compute Quantum Processes of Gate Sequences for Classical Non-Markovian Noise [0.0]
  Correlated, non-Markovian noise is present in many solid-state systems employed as hosts for quantum information technologies. We show it can be applied to describe unital evolution within the quantum operations formalism.
  arXiv  Detail & Related papers  (2021-03-03T13:54:12Z)
• Quantum information spreading in a disordered quantum walk [50.591267188664666]
  We design a quantum probing protocol using Quantum Walks to investigate the Quantum Information spreading pattern. We focus on the coherent static and dynamic disorder to investigate anomalous and classical transport. Our results show that a Quantum Walk can be considered as a readout device of information about defects and perturbations occurring in complex networks.
  arXiv  Detail & Related papers  (2020-10-20T20:03:19Z)
• Classical-noise-free sensing based on quantum correlation measurement [5.334199518329016]
  We show that measurement of the quantum correlations of a quantum target indeed allows for sensing schemes that have no classical counterparts. Finding suggests that the quantumness of sensors and targets is still to be explored to realize the full potential of quantum sensing.
  arXiv  Detail & Related papers  (2020-09-22T10:11:10Z)
• Quantum noise protects quantum classifiers against adversaries [120.08771960032033]
  Noise in quantum information processing is often viewed as a disruptive and difficult-to-avoid feature, especially in near-term quantum technologies. We show that by taking advantage of depolarisation noise in quantum circuits for classification, a robustness bound against adversaries can be derived. This is the first quantum protocol that can be used against the most general adversaries.
  arXiv  Detail & Related papers  (2020-03-20T17:56:14Z)
• Direct approach to realising quantum filters for high-precision measurements [7.454723938034161]
  We find a novel approach to realising quantum filters directly from their frequency-domain transfer functions. It opens a path towards the systematic design of optimal quantum measurement devices.
  arXiv  Detail & Related papers  (2020-02-18T15:32:27Z)

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.