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Related papers: Universal teleportation with a twist

200 papers

Novel classical wave phenomenon analogs of the quantum spin Hall effect are mostly based on the construction of pseudo-spins. Here we show that the non-trivial topology of a system can also be realized using orbital angular momentum through…

Mesoscale and Nanoscale Physics · Physics 2018-08-17 Tianshu Jiang , Meng Xiao , Wenjie Chen , Lechen Yang , Yawen Fang , Wing Yim Tam , C. T. Chan

We examine various manipulations of photon number states which can be implemented by teleportation technique with number sum measurement. The preparations of the Einstein-Podolsky-Rosen resources as well as the number sum measurement…

Quantum Physics · Physics 2009-11-10 Akira Kitagawa , Katsuji Yamamoto

We constrain a broad class of teleportation protocols using insights from locality. In the "standard" teleportation protocols we consider, all outcome-dependent unitaries are Pauli operators conditioned on linear functions of the…

Quantum Physics · Physics 2024-10-16 Yifan Hong , David T. Stephen , Aaron J. Friedman

The principle of teleportation can be used to perform a quantum computation even before its quantum input is defined. The basic idea is to perform the quantum computation at some earlier time with qubits which are part of an entangled…

Quantum Physics · Physics 2009-11-07 Caslav Brukner , Jian-Wei Pan , Christoph Simon , Gregor Weihs , Anton Zeilinger

We formulate a conclusive teleportation protocol for a system in d-dimensional Hilbert space utilizing the positive operator valued measurement at the sending station. The conclusive teleportation protocol ensures some perfect teleportation…

Quantum Physics · Physics 2009-11-06 W. Son , Jinhyoung Lee , M. S. Kim , Y. -J. Park

We discuss time displaced entanglement, produced by taking one member of a Bell pair on a round trip at relativistic speeds, thus inducing a time-shift between the pair. We show that decoherence with respect to Bell measurements on the pair…

Quantum Physics · Physics 2007-05-23 T. C. Ralph

The four Bell-type entangled coherent states, |\alpha>|-\alpha> \pm |-\alpha> |\alpha> and |\alpha>|\alpha> \pm |-\alpha> |-\alpha>, can be discriminated with a high probability using only linear optical means, as long as |\alpha| is not…

Quantum Physics · Physics 2009-11-10 Yong Wook Cheong , Hyunjae Kim , Hai-Woong Lee

Quantum measurement is universal for quantum computation. The model of quantum computation introduced by Nielsen and further developed by Leung relies on a generalized form of teleportation. In order to simulate any n-qubit unitary…

Quantum Physics · Physics 2016-10-11 Simon Perdrix

Using relative entropy, we derive bounds on the time rate of change of geometric entanglement entropy for any relativistic quantum field theory in any dimension. The bounds apply to both mixed and pure states, and may be extended to curved…

High Energy Physics - Theory · Physics 2014-12-10 Steven G. Avery , Miguel F. Paulos

This paper describes a scheme, through which the quantum information as well as the structural information of a time-reversal invariant system can be teleported over a distance. I show that my teleportation scheme can be viewed as a form of…

Quantum Physics · Physics 2011-07-29 Kiang Wei Kho

Scrambling 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. We introduce $7$-qubit quantum circuit for a…

Quantum Physics · Physics 2024-04-23 MuSeong Kim , Mi-Ra Hwang , Eylee Jung , DaeKil Park

In this paper we address the question as to what extent the quantum-mechanical nature of the process is relevant for teleportation of A spin-1/2 state. For this purpose we analyze the possibility of underpinning teleportation with a…

Quantum Physics · Physics 2008-01-21 Amir Kalev , Sergio Rivera , Pier A. Mello

Quantum teleportation of an unknown broadband electromagnetic field is investigated. The continuous-variable teleportation protocol by Braunstein and Kimble [Phys. Rev. Lett. {\bf 80}, 869 (1998)] for teleporting the quantum state of a…

Quantum Physics · Physics 2009-10-31 P. van Loock , Samuel L. Braunstein , H. J. Kimble

Teleportation allows Alice to send a pre-prepared quantum state to Bob using only pre-shared entanglement and classical communication. Here we show that it is possible to teleport a state which is also $\it{post}$-selected. Post-selection…

Quantum Physics · Physics 2024-03-14 Daniel Collins

We study the probabilistic (conditional) teleportation protocol when the entanglement needed to its implementation is given by thermal entanglement, i.e., when the entangled resource connecting Alice and Bob is an entangled mixed state…

Quantum Physics · Physics 2017-08-21 Raphael Fortes , Gustavo Rigolin

We find a set of conditions to achieve complete population transfer, via coherent population trapping, from an initial state to a designated final state at a designated time in a degenerate n-state atom, where the transitions are caused by…

Quantum Physics · Physics 2007-05-23 J. H. McGuire , Kh. Kh. Shakov , Kh. Yu. Rakhimov

We present a method to create a variety of interesting gates by teleporting quantum bits through special entangled states. This allows, for instance, the construction of a quantum computer based on just single qubit operations, Bell…

Quantum Physics · Physics 2009-10-31 Daniel Gottesman , Isaac L. Chuang

In this paper we propose a scheme for partially teleporting entangled atomic states. Our scheme can be implemented using only four two-level atoms interacting either resonantly or off-resonantly with a single cavity-QED. The estimative of…

Quantum Physics · Physics 2009-11-13 W. B. Cardoso , N. G. de Almeida

A single-particle entangled state can be generated by illuminating a beam splitter with a single photon. Quantum teleportation utilizing such a single-particle entangled state can be successfully achieved with a simple setup consisting only…

Quantum Physics · Physics 2009-11-06 Hai-Woong Lee , Jaewan Kim

We give an elementary proof of a generalization of Rokhlin's lemma for commuting non-invertible measure-preserving transformations, and we present several combinatorial applications.

Dynamical Systems · Mathematics 2016-01-29 Artur Avila , Pablo Candela