Port-based telecloning of an unknown quantum state

• URL: http://arxiv.org/abs/2501.16878v1
• Date: Tue, 28 Jan 2025 12:06:21 GMT
• Title: Port-based telecloning of an unknown quantum state
• Authors: Reiji Okada, Kohtaro Kato, Francesco Buscemi,
• Abstract summary: In the last decade, a new type of teleportation called port-based teleportation has been widely studied. In this paper, we consider the analog of telecloning, where conventional teleportation is replaced by the port-based variant.
• Score: 2.184775414778289
• License:
• Abstract: Telecloning is a protocol introduced by Murao et al. to distribute copies of an unknown quantum state to many receivers in a way that beats the trivial ``clone-and-teleport'' protocol. In the last decade, a new type of teleportation called port-based teleportation, in which the receiver can recover the state without having to actively perform correction operations, but simply by looking at the correct port, has been widely studied. In this paper, we consider the analog of telecloning, where conventional teleportation is replaced by the port-based variant. To achieve this, we generalize the optimal measurement used in port-based teleportation and develop a new one that achieves port-based telecloning. Numerical results show that, in certain cases, the proposed protocol is strictly better than the trivial clone-and-teleport approach.

Related papers

• Building a fusion-based quantum computer using teleported gates [41.94295877935867]
  We adopt a method of the quantum gate teleportation for converting circuit-based quantum computation primitives into fusion networks. We construct two new fusion based quantum computation models and study their fault tolerance properties.
  arXiv  Detail & Related papers  (2024-04-01T20:58:35Z)
• Continuous variable port-based teleportation [0.0]
  Port-based teleportation is a generalization of the standard teleportation protocol which does not require unitary operations by the receiver. This article introduces a general formulation of port-based teleportation in continuous variable systems and study in detail the $N=2$ case.
  arXiv  Detail & Related papers  (2023-02-16T19:00:02Z)
• Transversal Injection: A method for direct encoding of ancilla states for non-Clifford gates using stabiliser codes [55.90903601048249]
  We introduce a protocol to potentially reduce this overhead for non-Clifford gates. Preliminary results hint at high quality fidelities at larger distances.
  arXiv  Detail & Related papers  (2022-11-18T06:03:10Z)
• Oblivious Quantum Computation and Delegated Multiparty Quantum Computation [61.12008553173672]
  We propose a new concept, oblivious computation quantum computation, where secrecy of the input qubits and the program to identify the quantum gates are required. Exploiting quantum teleportation, we propose a two-server protocol for this task. Also, we discuss delegated multiparty quantum computation, in which, several users ask multiparty quantum computation to server(s) only using classical communications.
  arXiv  Detail & Related papers  (2022-11-02T09:01:33Z)
• High-fidelity quantum teleportation through noisy channels via weak measurement and environment-assisted measurement [0.8594140167290097]
  A perfect teleportation protocol requires pure maximally shared entangled states. While in reality the shared entanglement is severely degraded due to the inevitable interaction with the noisy environment. We propose a teleportation protocol to teleport an unknown qubit through the amplitude damping channels with a fidelity up to one with a single copy of the entangled state.
  arXiv  Detail & Related papers  (2022-06-29T08:39:46Z)
• Quantum Teleportation with One Classical Bit [0.0]
  Quantum teleportation allows one to transmit an arbitrary qubit from point A to point B using a pair of entangled qubits and classical bits of information. The conventional protocol for teleportation uses two bits of classical information and assumes that the sender has access to only one copy of the arbitrary qubit to the sent. We propose a modified quantum teleportation protocol that allows Alice to reset the state of the entangled pair to its initial state using only local operations.
  arXiv  Detail & Related papers  (2021-10-21T16:28:06Z)
• The Role of Localizable Concurrence in Quantum Teleportation Protocols [0.0]
  For mixed multi-partite states the lack of computable entanglement measures has made the identification of the quantum resource responsible for this advantage more challenging. We show that any teleportation protocol using an arbitrary multi-partite state, that includes a Bell measurement, requires a non-vanishing localizable concurrence between two of its parties in order to perform better than the classical protocol.
  arXiv  Detail & Related papers  (2021-06-12T01:00:52Z)
• Direct Quantum Communications in the Presence of Realistic Noisy Entanglement [69.25543534545538]
  We propose a novel quantum communication scheme relying on realistic noisy pre-shared entanglement. Our performance analysis shows that the proposed scheme offers competitive QBER, yield, and goodput.
  arXiv  Detail & Related papers  (2020-12-22T13:06:12Z)
• Counterfactual Concealed Telecomputation [22.577469136318836]
  We devise a distributed blind quantum computation protocol to perform a universal two-qubit controlled unitary operation. It is shown that the protocol is valid for general input states and that single-qubit unitary teleportation is a special case of CCT. The protocol becomes deterministic with simplified circuit implementation if the initial composite state of Alice and Bob is a Bell-type state.
  arXiv  Detail & Related papers  (2020-12-09T10:07:58Z)
• Generalization of port-based teleportation and controlled teleportation capability [1.6114012813668934]
  Port-based teleportation is a variant of the original quantum teleportation. We construct a concept of the controlled port-based teleportation by combining the controlled teleportation with the port-based teleportation.
  arXiv  Detail & Related papers  (2020-02-28T11:06:16Z)
• 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.