Open-Air Microwave Entanglement Distribution for Quantum Teleportation

• URL: http://arxiv.org/abs/2203.07295v1
• Date: Mon, 14 Mar 2022 17:03:46 GMT
• Title: Open-Air Microwave Entanglement Distribution for Quantum Teleportation
• Authors: Tasio Gonzalez-Raya, Mateo Casariego, Florian Fesquet, Michael Renger, Vahid Salari, Mikko M\"ott\"onen, Yasser Omar, Frank Deppe, Kirill G. Fedorov, Mikel Sanz
• Abstract summary: We study the feasibility of an open-air entanglement distribution scheme with microwave two-mode squeezed states. We adapt entanglement distillation and entanglement swapping protocols to microwave technology in order to reduce environmental entanglement degradation.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Microwave technology plays a central role in current wireless communications, standing among them mobile communication and local area networks (LANs). The microwave range shows relevant advantages with respect to other frequencies in open-air transmission, such as low absorption losses and low energy consumption, and it is additionally the natural working frequency in superconducting quantum technologies. Entanglement distribution between separate parties is at the core of secure quantum communications. Therefore, understanding its limitations in realistic open-air settings, specially in the rather unexplored microwave regime, is crucial for transforming microwave quantum communications into a mainstream technology. Here, we investigate the feasibility of an open-air entanglement distribution scheme with microwave two-mode squeezed states. First, we study the reach of direct entanglement transmission in open-air, obtaining a maximum distance of approximately 500 meters in a realistic setting with state-of-the-art experimental parameters. Afterwards, we adapt entanglement distillation and entanglement swapping protocols to microwave technology in order to reduce environmental entanglement degradation. While entanglement distillation helps to increase quantum correlations in the short-distance low-squeezing regime by up to $46\%$, entanglement swapping increases the reach by $14\%$. Then, we compute the fidelity of a continuous-variable quantum teleportation protocol using open-air-distributed entanglement as a resource. Finally, we adapt the machinery to explore the limitations of quantum communication between satellites, where the thermal noise impact is substantially reduced and diffraction losses are dominant.

Related papers

• The multimode conditional quantum Entropy Power Inequality and the squashed entanglement of the extreme multimode bosonic Gaussian channels [53.253900735220796]
  Inequality determines the minimum conditional von Neumann entropy of the output of the most general linear mixing of bosonic quantum modes. Bosonic quantum systems constitute the mathematical model for the electromagnetic radiation in the quantum regime.
  arXiv  Detail & Related papers  (2024-10-18T13:59:50Z)
• Quantum error mitigation for Fourier moment computation [49.1574468325115]
  This paper focuses on the computation of Fourier moments within the context of a nuclear effective field theory on superconducting quantum hardware. The study integrates echo verification and noise renormalization into Hadamard tests using control reversal gates. The analysis, conducted using noise models, reveals a significant reduction in noise strength by two orders of magnitude.
  arXiv  Detail & Related papers  (2024-01-23T19:10:24Z)
• Wireless Microwave Quantum Communication [0.0]
  We study the limits in the application of quantum microwaves for quantum communication and quantum sensing. We take advantage of Gaussian quantum states for quantum teleportation and quantum illumination. We conclude by studying the teleportation of quantum information in a quantum local area.
  arXiv  Detail & Related papers  (2024-01-15T11:40:44Z)
• Quantum-limited millimeter wave to optical transduction [50.663540427505616]
  Long distance transmission of quantum information is a central ingredient of distributed quantum information processors. Current approaches to transduction employ solid state links between electrical and optical domains. We demonstrate quantum-limited transduction of millimeter-wave (mmwave) photons into optical photons using cold $85$Rb atoms as the transducer.
  arXiv  Detail & Related papers  (2022-07-20T18:04:26Z)
• Entangling remote microwave quantum computers with hybrid entanglement swap and variational distillation [4.046143379963425]
  Superconducting microwave circuits with Josephson junctions are a major platform for quantum computing. We propose a continuous-variable entanglement-swap approach based on optical-microwave entanglement generation. Our work provides a practical method to realize efficient quantum links for superconducting microwave quantum computers.
  arXiv  Detail & Related papers  (2022-06-29T14:34:29Z)
• 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)
• Perspectives of microwave quantum key distribution in open-air [0.817918559522319]
  We investigate the perspectives of continuous-variable open-air quantum key distribution at microwave frequencies. We show that microwaves can potentially outperform conventional quantum key distribution at telecom wavelength at imperfect weather conditions.
  arXiv  Detail & Related papers  (2022-03-10T18:27:51Z)
• Slowing down light in a qubit metamaterial [98.00295925462214]
  superconducting circuits in the microwave domain still lack such devices. We demonstrate slowing down electromagnetic waves in a superconducting metamaterial composed of eight qubits coupled to a common waveguide. Our findings demonstrate high flexibility of superconducting circuits to realize custom band structures.
  arXiv  Detail & Related papers  (2022-02-14T20:55:10Z)
• Unconditional Microwave Quantum Teleportation of Gaussian States in Lossy Environments [0.0]
  This formalism is controllable to be used in both the fridge and free space. Some possible experimental parameters are estimated for the teleportation of microwave signals with a frequency of 5GHz.
  arXiv  Detail & Related papers  (2021-03-03T16:47:11Z)
• Microwave Quantum Link between Superconducting Circuits Housed in Spatially Separated Cryogenic Systems [43.55994393060723]
  We report the successful operation of a cryogenic waveguide coherently linking transmon qubits located in two dilution refrigerators separated by a physical distance of five meters. We transfer qubit states and generate entanglement on-demand with average transfer and target state fidelities of 85.8 % and 79.5 %, respectively.
  arXiv  Detail & Related papers  (2020-08-04T15:36:51Z)
• Two-way covert quantum communication in the microwave regime [0.0]
  Quantum communication addresses the problem of exchanging information across macroscopic distances. We advance a new paradigm for secure quantum communication by combining backscattering concepts with covert communication in the microwave regime. This work makes a decisive step toward implementing secure quantum communication concepts in the previously uncharted $1$-$10$ GHz frequency range.
  arXiv  Detail & Related papers  (2020-04-15T16:36:59Z)

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.