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The distribution of entanglement across distant qubits is a central challenge for the operation of scalable quantum computers and large-scale quantum networks. Existing approaches rely on deterministic state transfer schemes or…

Quantum Physics · Physics 2025-10-09 A. Andrés-Juanes , J. Agustí , R. Sett , E. S. Redchenko , L. Kapoor , S. Hawaldar , P. Rabl , J. M. Fink

We show that {\it one} single-mode squeezed state distributed among $N$ parties using linear optics suffices to produce a truly $N$-partite entangled state for any nonzero squeezing and arbitrarily many parties. From this $N$-partite…

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

We propose a deterministic remote state preparation scheme for photon polarization qubit states, where entanglement, local operations and classical communication are used. By consuming one maximally entangled state and two classical bits,…

Quantum Physics · Physics 2015-05-14 Wei Wu , Wei-Tao Liu , Ping-Xing Chen , Cheng-Zu Li

Many quantum state preparation methods rely on a combination of dissipative quantum state initialization, followed by unitary evolution to a desired target state. Here we demonstrate the usefulness of quantum measurement as an additional…

Quantum Physics · Physics 2020-07-01 Byron Alexander , Hermann Uys , John J. Bollinger

According to quantum theory the interactions between physical systems are quantized. As a direct consequence, measurement sensitivities are fundamentally limited by quantization noise, or just `quantum noise' in short. Furthermore,…

Quantum Physics · Physics 2017-12-19 Roman Schnabel

We show that the motion of a cold trapped ion can be squeezed by modulating the intensity of a phase-stable optical lattice placed inside the trap. As this method is reversible and state selective it effectively implements a…

Spins in solids and molecules are promising for applications of quantum sensing technology. The sensitivity of the quantum sensing depends on how precisely spin observables can be determined in the measurement, and is intrinsically limited…

Quantum Physics · Physics 2025-11-21 Yifan Song , Nabiha Hasan , Susumu Takahashi

We show how optically-driven coupled quantum dots can be used to prepare maximally entangled Bell and Greenberger-Horne-Zeilinger states. Manipulation of the strength and duration of the selective light-pulses needed for producing these…

Quantum Physics · Physics 2009-10-31 John H. Reina , Luis Quiroga , Neil F. Johnson

A sender can prepare a quantum state for a remote receiver using preshared entangled pairs, only the sender's single-qubit measurement, and the receiver's simple correction informed by the sender. It provides resource-efficient advantages…

Quantum Physics · Physics 2024-01-17 Yuan-Sung Liu , Shih-Hsuan Chen , Bing-Yuan Lee , Chan Hsu , Guang-Yin Chen , Yueh-Nan Chen , Che-Ming Li

The squeezed state of the electromagnetic field can be generated in many nonlinear optical processes and finds a wide range of applications in quantum information processing and quantum metrology. This article reviews the basic properties…

Quantum Physics · Physics 2016-07-29 A. I. Lvovsky

We present a scheme in which any pure qubit $|\phi=\cos{\theta}|0+\sin{\theta}e^{i\varp hi}|1$ could be remotely prepared by using minimum classical bits and the previously shared non-maximally entangled states, on condition that the…

Quantum Physics · Physics 2007-05-23 Lin Chen , Yi-Xin Chen

A protocol for remote state preparation is proposed for spin ensembles, where the aim is to prepare a state with a given set of spin expectation values on a remote spin ensemble using entanglement, local spin rotations, and measurements in…

Remote information concentration, the reverse process of quantum telecloning, is presented. In this scheme, quantum information originally from a single qubit, but now distributed into three spatially separated qubits, is remotely…

Quantum Physics · Physics 2009-11-06 Mio Murao , Vlatko Vedral

Bosonic modes constitute a central resource in a wide range of quantum technologies, providing long-lived degrees of freedom for the storage, processing, and transduction of quantum information. Such modes naturally arise in platforms…

Quantum Physics · Physics 2026-02-10 Zhiyuan Lin , Sen Li , Jingyan Feng , Valentin Ivannikov , Matteo Fadel , Tim Byrnes

Shared entanglement allows, under certain conditions, the remote implementation of quantum operations. We revise and extend recent theoretical results on the remote control of quantum systems as well as experimental results on the remote…

Quantum Physics · Physics 2016-08-16 Susana F. Huelga , Martin B. Plenio , Guo-Yong Xiang , Jian Li , Guang-Can Guo

Photon number-squeezed states are of significant value in fundamental quantum research and have a wide range of applications in quantum metrology. Most of their preparation mechanisms require precise control of quantum dynamics and are less…

Quantum Physics · Physics 2023-08-25 Baiqiang Zhu , Keye Zhang , Weiping Zhang

We present an adaptive procedure for aligning quantum non-locality experiments without any knowledge of the two-qudit state shared by the participating parties. The quantum state produced by the source, its unitary evolution as well as the…

Quantum Physics · Physics 2024-01-25 Robert Kindler , Johannes Handsteiner , Jaroslav Kysela , Kuntuo Zhu , Bo Liu , Anton Zeilinger

The existing notion of the shared entangled state-assisted remote preparation of unitary operator (equivalently the existing notion of quantum remote control) using local operation and classical communication is generalized to a scenario…

Quantum Physics · Physics 2024-03-14 Satish Kumar , Nguyen Ba An , Anirban Pathak

Remote state preparation is generation of a desired state by a remote observer. In spite of causality, it is well known, according to the Reeh-Schlieder theorem, that it is possible for relativistic quantum field theories, and a "physical"…

Quantum Physics · Physics 2016-03-24 Ran Ber , Erez Zohar

We present a practical and general scheme of remote preparation for pure and mixed state, in which an auxiliary qubit and controlled-NOT gate are used. We discuss the remote state preparation (RSP) in two important types of decoherent…

Quantum Physics · Physics 2009-11-11 Guo-Yong Xiang , Jian Li , Bo Yu , Guang-Can Guo