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An electron spin state teleportation scheme is described in detail. It is based on the protocol by Bennett et al. [Phys. Rev. Lett. 70, 1895 (1993)], and involves the production and detection by superconductors of entangled pairs of…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Olivier Sauret , Denis Feinberg , Thierry Martin

Nonperturbative analysis of quantum entanglement and quantum teleportation protocol using oscillator variables carried by observers in relativistic motion under the continuous influence of the environment is given. The full time evolution…

General Relativity and Quantum Cosmology · Physics 2009-10-14 K. Shiokawa

We demonstrate conditional entanglement swapping, i.e. teleportation of entanglement, between time-bin qubits at the telecommunication wavelength of 1536.4 nm with high fidelity of 87\%. Our system is deployable, utilizing modular,…

The most simplest form of quantum network is an one dimensional quantum network with a single player in each node. In remote entanglement distribution each of the players carry out measurement at the intermediate nodes to produce an…

Quantum Physics · Physics 2023-06-27 Ganesh Mylavarapu , Indranil Chakrabarty , Kaushiki Mukherjee , Minyi Huang , Junde Wu

The distribution of entanglement between macroscopically separated parties represents a crucial protocol for future quantum information networks. Surprisingly, it has been theoretically shown that two distant systems can be entangled by…

Transfer of quantum information between physical systems of a different nature is a central matter in quantum technologies. Particularly challenging is the transfer between discrete- and continuous degrees of freedom of various harmonic…

Having common reference frames or aligned coordinate systems, is one of the presumptions in witnessing entanglement in a two-party state possessed by two remote parties. This assumption may fail for many reasons. With an unlimited supply of…

Quantum Physics · Physics 2024-05-31 Vahid Jannessary , Fatemeh Rezazadeh , Sadegh Raeisi , Vahid Karimipour

Quantum entanglement can manifest itself in the narrowing of wavepackets. We define the phenomenon of phase entanglement and describe its effect on the interpretation of spatial localization experiments.

Quantum Physics · Physics 2007-05-23 K. W. Chan , J. H. Eberly

An Ising-inspired numerical model is developed to study spontaneous quantum teleportation in a quenched spin lattice. Quantum teleportation is an operation that can, using entangled pairs of particles, transport a quantum state across…

Disordered Systems and Neural Networks · Physics 2015-11-10 Nickolas Pilgram , Thomas D. Gutierrez

The quantum teleportation plays an important role in quantum information process, in this sense, the quantum entanglement properties involving an infinite chain structure is quite remarkable because real materials could be well represented…

Quantum Physics · Physics 2017-03-08 M. Rojas , S. M. de Souza , Onofre Rojas

Quantum theory is often presented as the theory describing the microscopic world, and admittedly, it has done this extremely well for decades. Nonetheless, the question of whether it applies at all scales and in particular at human scales…

Quantum Physics · Physics 2013-09-18 Natalia Bruno , Anthony Martin , Pavel Sekatski , Nicolas Sangouard , Rob Thew , Nicolas Gisin

The Coulomb interaction generally limits the quantum propagation of electrons. However, it can also provide a mechanism to transfer their quantum state over larger distances. Here, we demonstrate such a form of teleportation, across a…

Mesoscale and Nanoscale Physics · Physics 2020-02-26 H. Duprez , E. Sivre , A. Anthore , A. Aassime , A. Cavanna , U. Gennser , F. Pierre

Quantum teleportation is considered a basic primitive in many quantum information processing tasks and has been experimentally confirmed in various photonic and matter-based setups. Here, we consider teleportation of quantum information…

Quantum Physics · Physics 2020-05-20 Tiago Debarba , Fernando Iemini , Geza Giedke , Nicolai Friis

We demonstrate an unconditional high-fidelity teleporter capable of preserving the broadband entanglement in an optical squeezed state. In particular, we teleport a squeezed state of light and observe $-0.8 \pm 0.2$dB of squeezing in the…

Quantum Physics · Physics 2009-11-13 Hidehiro Yonezawa , Samuel L. Braunstein , Akira Furusawa

We study standard quantum teleportation of one-qubit state for the situation in which the channel is subject to decoherence, and where the evolution of the channel state is ruled by a master equation in the Lindblad form. A detailed…

Quantum Physics · Physics 2011-11-28 Ming-Liang Hu

Teleportation may be taken as sending and extracting quantum information through quantum channels. In this report, it is shown that to get the maximal probability of exact teleportation through partially entangled quantum channels, the…

Quantum Physics · Physics 2009-10-31 Wan-Li Li , Chuan-Feng Li , Guang-Can Guo

Mechanical systems facilitate the development of a new generation of hybrid quantum technology comprising electrical, optical, atomic and acoustic degrees of freedom. Entanglement is the essential resource that defines this new paradigm of…

Quantum Physics · Physics 2019-06-28 S. Barzanjeh , E. S. Redchenko , M. Peruzzo , M. Wulf , D. P. Lewis , G. Arnold , J. M. Fink

We trace back the phenomenon of "delayed-choice entanglement swapping" as it was realized in a recent experiment to the commutativity of the projection operators that are involved in the corresponding measurement process. We also propose an…

Quantum Physics · Physics 2013-11-25 Reinhold A. Bertlmann , Heide Narnhofer , Walter Thirring

Recent experiments confirm that quantum teleportation is possible at least for states of photons and nuclear spins. The quantum teleportation is not only a curious effect but a fundamental protocol of quantum communication and quantum…

Quantum Physics · Physics 2007-05-23 Adam Miranowicz , Kiyoshi Tamaki

Entanglement properties of two uncoupled atoms embedded in a coherent field distribution through one quantum transition process is studied. A case of non-linear Hamiltonian of the problem is considered through which the effect of a…

Quantum Physics · Physics 2010-03-16 M. S. Ateto