Deterministic quantum teleportation between distant superconducting chips

• URL: http://arxiv.org/abs/2302.08756v1
• Date: Fri, 17 Feb 2023 08:41:29 GMT
• Title: Deterministic quantum teleportation between distant superconducting chips
• Authors: Jiawei Qiu, Yang Liu, Jingjing Niu, Ling Hu, Yukai Wu, Libo Zhang, Wenhui Huang, Yuanzhen Chen, Jian Li, Song Liu, Youpeng Zhong, Luming Duan, Dapeng Yu
• Abstract summary: We demonstrate deterministic teleportation of quantum states and entangling gates between distant superconducting chips connected by a 64-meter-long cable bus. High fidelity remote entanglement is generated via flying microwave photons utilizing time-reversal-symmetry. Our work lays a foundation to realization of large-scale superconducting quantum computation through a distributed computational network.
• Score: 15.66155277002441
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum teleportation~\cite{Bennett1993} is of both fundamental interest and great practical importance in quantum information science. To date, quantum teleportation has been implemented in various physical systems~\cite{Pirandola2015}, among which superconducting qubits are of particular practical significance as they emerge as a leading system to realize large-scale quantum computation~\cite{Arute2019,Wu2021}. Nevertheless, the number of superconducting qubits on the same chip is severely limited by the available chip size, the cooling power, and the wiring complexity. Realization of quantum teleportation and remote computation over qubits on distant superconducting chips is a key quantum communication technology to scaling up the system through a distributed quantum computational network~\cite{Gottesman1999,Eisert2000,Jiang2007,Kimble2008,Monroe2014}. However, this goal has not been realized yet in experiments due to the technical challenge of making a quantum interconnect between distant superconducting chips and the inefficient transfer of flying microwave photons over the lossy interconnects~\cite{Kurpiers2018,Axline2018,Campagne2018,Magnard2020}. Here we demonstrate deterministic teleportation of quantum states and entangling gates between distant superconducting chips connected by a 64-meter-long cable bus featuring an ultralow loss of 0.32~dB/km at cryogenic temperatures, where high fidelity remote entanglement is generated via flying microwave photons utilizing time-reversal-symmetry~\cite{Cirac1997,Korotkov2011}. Apart from the fundamental interest of teleporting macroscopic superconducting qubits over a long distance, our work lays a foundation to realization of large-scale superconducting quantum computation through a distributed computational network~\cite{Gottesman1999,Eisert2000,Jiang2007,Kimble2008,Monroe2014}.

Related papers

• Chip-to-chip quantum photonic controlled-NOT gate teleportation [4.639977636738577]
  We implement high fidelity quantum controlled-NOT (CNOT) gate teleportation with state-of-the-art silicon photonic integrated circuits. The CNOT gate is teleported between two remote quantum nodes connected by the single-mode optical fiber. These results advance the realization of large-scale and practical quantum networks with photonic integrated circuits.
  arXiv  Detail & Related papers  (2024-11-23T04:22:33Z)
• Quantum teleportation with dissimilar quantum dots over a hybrid quantum network [24.574514809868866]
  Photonic quantum information processing in quantum networks lays the foundation for cloud quantum computing, secure communication, and the realization of a global quantum internet. Here, we demonstrate the exploitation of distinct quantum emitters to implement all-photonic quantum teleportation among distant parties. The achieved teleportation state fidelity reaches up to 82+-1%, above the classical limit by more than 10 standard deviations.
  arXiv  Detail & Related papers  (2024-11-19T10:16:58Z)
• Strong coupling of a superconducting flux qubit to single bismuth donors [0.0]
  Single bismuth donors can coherently transfer their quantum information to a superconducting flux qubit. This superconducting device allows to connect distant spins on-demand with little impact on their coherent behavior.
  arXiv  Detail & Related papers  (2024-11-05T06:54:09Z)
• 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)
• Realization of high-fidelity perfect entangler between remote superconducting quantum processors [10.082111942756052]
  Superconducting qubits are a promising candidate for universal quantum computing. Here, we demonstrate high-fidelity perfect entanglers between two remote superconducting quantum devices over 30 cm distance. This advancement significantly enhances the feasibility of universal distributed quantum information processing.
  arXiv  Detail & Related papers  (2024-07-29T18:00:12Z)
• Quantum Optical Memory for Entanglement Distribution [52.77024349608834]
  Entanglement of quantum states over long distances can empower quantum computing, quantum communications, and quantum sensing. Over the past two decades, quantum optical memories with high fidelity, high efficiencies, long storage times, and promising multiplexing capabilities have been developed.
  arXiv  Detail & Related papers  (2023-04-19T03:18:51Z)
• Field-deployable Quantum Memory for Quantum Networking [62.72060057360206]
  We present a quantum memory engineered to meet real-world deployment and scaling challenges. The memory technology utilizes a warm rubidium vapor as the storage medium, and operates at room temperature. We demonstrate performance specifications of high-fidelity retrieval (95%) and low operation error $(10-2)$ at a storage time of 160 $mu s$ for single-photon level quantum memory operations.
  arXiv  Detail & Related papers  (2022-05-26T00:33:13Z)
• Experimental quantum teleportation of propagating microwaves [0.0]
  We show a realization of deterministic quantum teleportation of coherent microwave states by exploiting two-mode squeezing and analog feed distances. Our results provide a key ingredient for the teleportation-based quantum gate for modular quantum computing with superconducting circuits.
  arXiv  Detail & Related papers  (2021-03-06T16:59:53Z)
• Telecom-heralded entanglement between remote multimode solid-state quantum memories [55.41644538483948]
  Future quantum networks will enable the distribution of entanglement between distant locations and allow applications in quantum communication, quantum sensing and distributed quantum computation. Here we report the demonstration of heralded entanglement between two spatially separated quantum nodes, where the entanglement is stored in multimode solid-state quantum memories. We also show that the generated entanglement is robust against loss in the heralding path, and demonstrate temporally multiplexed operation, with 62 temporal modes.
  arXiv  Detail & Related papers  (2021-01-13T14:31:54Z)
• Circuit Quantum Electrodynamics [62.997667081978825]
  Quantum mechanical effects at the macroscopic level were first explored in Josephson junction-based superconducting circuits in the 1980s. In the last twenty years, the emergence of quantum information science has intensified research toward using these circuits as qubits in quantum information processors. The field of circuit quantum electrodynamics (QED) has now become an independent and thriving field of research in its own right.
  arXiv  Detail & Related papers  (2020-05-26T12:47:38Z)
• Teleporting quantum information encoded in fermionic modes [62.997667081978825]
  We consider teleportation of quantum information encoded in modes of a fermionic field. In particular, one is forced to distinguish between single-mode entanglement swapping, and qubit teleportation with or without authentication.
  arXiv  Detail & Related papers  (2020-02-19T14:15:16Z)

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.