Results 31 to 40 of about 23,561 (228)

Catalytic Quantum Teleportation [PDF]

open access: yesPhysical Review Letters, 2021
In this work, we address fundamental limitations of quantum teleportation-the process of transferring quantum information using classical communication and preshared entanglement. We develop a new teleportation protocol based upon the idea of using ancillary entanglement catalytically, i.e., without depleting it. This protocol is then used to show that
Patryk Lipka-Bartosik, Paul Skrzypczyk
openaire   +5 more sources

Research Paper: Multi-hop Quantum Teleportation Scheme of the 6-Qubit Entangled State by Intermediate Nodes with the Best Efficiency [PDF]

open access: yesفیزیک کاربردی ایران, 2022
Quantum multi-hop teleportation is important in the field of quantum communication. In this paper, we proposed a Multi-hop quantum teleportation scheme of the 6-qubit entangled state.
Negin Fatahi
doaj   +1 more source

Teleportation of quantum coherence

open access: yesPhysical Review A, 2023
We investigate whether it is possible to teleport the coherence of an unknown quantum state from Alice to Bob by communicating a lesser number of classical bits in comparison to what is required for teleporting an unknown quantum state. We find that we cannot achieve perfect teleportation of coherence with one bit of classical communication for an ...
null Sohail   +4 more
openaire   +3 more sources

Teleportation of the relativistic quantum field [PDF]

open access: greenPhysics Letters A, 2000
The process of teleportation of a completely unknown one-particle state of a free relativistic quantum field is considered. In contrast to the non-relativistic quantum mechanics, the teleportation of an unknown state of the quantum field cannot be in principle described in terms of a measurement in a tensor product of two Hilbert spaces to which the ...
R. Laiho, S. N. Molotkov, S. S. Nazin
openalex   +5 more sources

Does Hawking effect always degrade fidelity of quantum teleportation in Schwarzschild spacetime?

open access: yesJournal of High Energy Physics, 2023
Previous studies have shown that the Hawking effect always destroys quantum correlations and the fidelity of quantum teleportation in the Schwarzschild black hole.
Shu-Min Wu   +5 more
doaj   +1 more source

Many-Body Quantum Teleportation via Operator Spreading in the Traversable Wormhole Protocol

open access: yesPhysical Review X, 2022
By leveraging shared entanglement between a pair of qubits, one can teleport a quantum state from one particle to another. Recent advances have uncovered an intrinsically many-body generalization of quantum teleportation, with an elegant and surprising ...
Thomas Schuster   +9 more
doaj   +1 more source

Scrambling and quantum teleportation

open access: yesQuantum Information Processing, 2023
AbstractScrambling is a concept introduced from information loss problem arising in black hole. In this paper we discuss the effect of scrambling from a perspective of pure quantum information theory regardless of the information loss problem. We introduce 7-qubit quantum circuit for a quantum teleportation.
MuSeong Kim   +3 more
openaire   +2 more sources

Multiqubit quantum teleportation [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2012
8 ...
Shao-Ming Fei   +4 more
openaire   +3 more sources

Optimal tests for continuous-variable quantum teleportation and photodetectors

open access: yesPhysical Review Research, 2022
Quantum teleportation is a primitive in several important applications, including quantum communication, quantum computation, error correction, and quantum networks. In this paper, we propose an optimal test for the performance of continuous-variable (CV)
Kunal Sharma   +2 more
doaj   +1 more source

Teleportation of continuous quantum variables [PDF]

open access: greenPhysical Review Letters, 2002
Quantum teleportation is analyzed for states of dynamical variables with continuous spectra, in contrast to previous work with discrete (spin) variables. The entanglement fidelity of the scheme is computed, including the roles of finite quantum correlation and nonideal detection efficiency. A protocol is presented for teleporting the wave function of a
Samuel L. Braunstein   +4 more
openalex   +12 more sources

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