Quantum correlation generation capability of experimental processes
- URL: http://arxiv.org/abs/2305.00370v1
- Date: Sun, 30 Apr 2023 02:22:56 GMT
- Title: Quantum correlation generation capability of experimental processes
- Authors: Wei-Hao Huang, Shih-Hsuan Chen, Chun-Hao Chang, Tzu-Liang Hsu,
Kuan-Jou Wang, Che-Ming Li
- Abstract summary: EPR steering and Bell nonlocality illustrate two different kinds of correlations predicted by quantum mechanics.
We show that the capability of an experimental process to create quantum correlations can be quantified.
We demonstrate this utility by examining the experimental capability of creating quantum correlations with the controlled-phase operations on the IBM Quantum Experience and Amazon Braket Rigetti superconducting quantum computers.
- Score: 5.552315676636436
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Einstein-Podolsky-Rosen (EPR) steering and Bell nonlocality illustrate two
different kinds of correlations predicted by quantum mechanics. They not only
motivate the exploration of the foundation of quantum mechanics, but also serve
as important resources for quantum-information processing in the presence of
untrusted measurement apparatuses. Herein, we introduce a method for
characterizing the creation of EPR steering and Bell nonlocality for dynamical
processes in experiments. We show that the capability of an experimental
process to create quantum correlations can be quantified and identified simply
by preparing separable states as test inputs of the process and then performing
local measurements on single qubits of the corresponding outputs. This finding
enables the construction of objective benchmarks for the two-qubit controlled
operations used to perform universal quantum computation. We demonstrate this
utility by examining the experimental capability of creating quantum
correlations with the controlled-phase operations on the IBM Quantum Experience
and Amazon Braket Rigetti superconducting quantum computers. The results show
that our method provides a useful diagnostic tool for evaluating the primitive
operations of nonclassical correlation creation in noisy intermediate scale
quantum devices.
Related papers
- Toward coherent quantum computation of scattering amplitudes with a
measurement-based photonic quantum processor [0.0]
We discuss the feasibility of using quantum optical simulation for studying scattering observables that are presently inaccessible via lattice QCD.
We show that recent progress in measurement-based photonic quantum computing can be leveraged to provide deterministic generation of required exotic gates.
arXiv Detail & Related papers (2023-12-19T21:36:07Z) - Quantum data learning for quantum simulations in high-energy physics [55.41644538483948]
We explore the applicability of quantum-data learning to practical problems in high-energy physics.
We make use of ansatz based on quantum convolutional neural networks and numerically show that it is capable of recognizing quantum phases of ground states.
The observation of non-trivial learning properties demonstrated in these benchmarks will motivate further exploration of the quantum-data learning architecture in high-energy physics.
arXiv Detail & Related papers (2023-06-29T18:00:01Z) - Measurement-induced entanglement and teleportation on a noisy quantum
processor [105.44548669906976]
We investigate measurement-induced quantum information phases on up to 70 superconducting qubits.
We use a duality mapping, to avoid mid-circuit measurement and access different manifestations of the underlying phases.
Our work demonstrates an approach to realize measurement-induced physics at scales that are at the limits of current NISQ processors.
arXiv Detail & Related papers (2023-03-08T18:41:53Z) - Non-Markovian noise sources for quantum error mitigation [0.0]
We present a non-Markovian model of quantum state evolution and a quantum error mitigation cost function tailored for NISQ devices.
Our findings reveal that the cost function for quantum error mitigation increases as the coupling strength between the quantum system and its environment intensifies.
arXiv Detail & Related papers (2023-02-10T05:10:27Z) - Complete characterization of quantum correlations by randomized
measurements [0.832184180529969]
We provide a method to measure any locally invariant property of quantum states using locally randomized measurements.
We implement these methods experimentally using pairs of entangled photons, characterizing their usefulness for quantum teleportation.
Our results can be applied to various quantum computing platforms, allowing simple analysis of correlations between arbitrary distant qubits.
arXiv Detail & Related papers (2022-12-15T15:22:28Z) - Anticipative measurements in hybrid quantum-classical computation [68.8204255655161]
We present an approach where the quantum computation is supplemented by a classical result.
Taking advantage of its anticipation also leads to a new type of quantum measurements, which we call anticipative.
In an anticipative quantum measurement the combination of the results from classical and quantum computations happens only in the end.
arXiv Detail & Related papers (2022-09-12T15:47:44Z) - Characterizing quantum instruments: from non-demolition measurements to
quantum error correction [48.43720700248091]
In quantum information processing quantum operations are often processed alongside measurements which result in classical data.
Non-unitary dynamical processes can take place on the system, for which common quantum channel descriptions fail to describe the time evolution.
Quantum measurements are correctly treated by means of so-called quantum instruments capturing both classical outputs and post-measurement quantum states.
arXiv Detail & Related papers (2021-10-13T18:00:13Z) - Experimental progress on quantum coherence: detection, quantification,
and manipulation [55.41644538483948]
Recently there has been significant interest in the characterization of quantum coherence as a resource.
We discuss the main platforms for realizing the experiments: linear optics, nuclear magnetic resonance, and superconducting systems.
We also review experiments exploring the connections between coherence and uncertainty relations, path information, and coherence of operations and measurements.
arXiv Detail & Related papers (2021-05-14T14:30:47Z) - Information Scrambling in Computationally Complex Quantum Circuits [56.22772134614514]
We experimentally investigate the dynamics of quantum scrambling on a 53-qubit quantum processor.
We show that while operator spreading is captured by an efficient classical model, operator entanglement requires exponentially scaled computational resources to simulate.
arXiv Detail & Related papers (2021-01-21T22:18:49Z)
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.