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Hybrid entanglement swapping supports the teleportation of any arbitrary states, regardless of whether the quantum information in the state is encoded in Discrete Variables (DV) or Continuous Variables (CV). In this work, we study the CV…

Quantum Physics · Physics 2020-07-08 Hung Do , Robert Malaney , Jonathan Green

We propose a general approach for the implementation of the hybrid entangled states consisting of continuous variable (CV) and discrete variable (DV) states. Peculiarities of DV-CV interaction mechanism on the beam splitter with arbitrary…

Quantum Physics · Physics 2020-04-22 Mihail S. Podoshvedov , Sergey A. Podoshvedov

We propose a scheme of loss-resilient entanglement swapping between two distant parties via an imperfect optical channel. In this scheme, two copies of hybrid entangled states are prepared and the continuous-variable parts propagate through…

Quantum Physics · Physics 2017-01-04 Youngrong Lim , Jaewoo Joo , Timothy P. Spiller , Hyunseok Jeong

Quantum teleportation between polarized single-photon and phase-opposite coherent states is studied using a hybrid entangled resource and entangled coherent states. The polarized single-photon qubit represents a discrete-variable (DV)…

Quantum Physics · Physics 2026-02-20 Ravi Kamal Pandey , Shraddha Singh , Dhiraj Yadav , Devendra Kumar Mishra

Hybrid entangled states prove to be necessary for quantum information processing within heterogeneous quantum networks. A method with irreducible number of consumed resources that firmly provides hybrid CV-DV entanglement for any input…

Quantum Physics · Physics 2021-01-07 Sergey A. Podoshvedov , Nguyen Ba An

Discrete-variable (DV) entanglement is crucial for numerous quantum applications, yet its deterministic generation in many bosonic systems remains experimentally challenging. In contrast, continuous-variable (CV) entanglement can be…

Quantum Physics · Physics 2026-03-16 Pak-Tik Fong , Ruchir Tullu , Hoi-Kwan Lau

Hybrid entanglement between discrete-variable (DV) and continuous-variable (CV) quantum systems is an essential resource for heterogeneous quantum networks. Our previous work showed that in lossy channels the teleportation of DV qubits, via…

Quantum Physics · Physics 2022-10-17 Mingjian He , Robert Malaney

We introduce a feasible scheme to produce high-rate long-distance entanglement which uses hybrid entanglement (HE) between continuous variables (CV) and discrete variables (DV). We show that HE can effectively remove the experimental…

Quantum Physics · Physics 2025-01-27 Soumyakanti Bose , Jaskaran Singh , Adán Cabello , Hyunseok Jeong

Entanglement is one of the most fascinating features arising from quantum-mechanics and of great importance for quantum information science. Of particular interest are so-called hybrid-entangled states which have the intriguing property…

Continuous variable (CV) entanglement refers to the type of entanglement of quantum wave-like systems that are described by continuous variables in an inherently infinite-dimensional space. It can become a crucial resource for quantum…

Quantum Physics · Physics 2026-03-04 Mikhail S. Podoshvedov , Sergey A. Podoshvedov

By coherently combining advantages while largely avoiding limitations of two mainstream platforms, optical hybrid entanglement involving both discrete and continuous variables has recently garnered widespread attention and emerged as a…

Quantum Physics · Physics 2025-01-23 Jianming Wen , Irina Novikova , Chen Qian , Chuanwei Zhang , Shengwang Du

We propose a new approach to the generation of entangled states, both hybrid and consisting exclusively of continuous variable (CV) states. A single mode squeezed vacuum is mixed with a delocalized single photon on arbitrary beam splitter…

Quantum Physics · Physics 2020-05-15 Sergey A. Podoshvedov , Mikhail S. Podoshvedov

Heterogeneous quantum networks consisting of mixed-technologies - Continuous Variable (CV) and Discrete Variable (DV) - will become ubiquitous as global quantum communication matures. Hybrid quantum-entanglement between CV and DV modes will…

Quantum Physics · Physics 2021-02-08 Hung Do , Robert Malaney , Jonathan Green

We present two strategies to enhance the dynamical entanglement transfer from continuous variable (CV) to finite dimensional systems by employing multiple qubits. First, we consider the entanglement transfer to a composite finite…

Quantum Physics · Physics 2007-05-23 A. Serafini , M. Paternostro , M. S. Kim , S. Bose

We give a protocol and criteria for demonstrating unconditional teleportation of continuous-variable entanglement (i.e., entanglement swapping). The initial entangled states are produced with squeezed light and linear optics. We show that…

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

We develop theory of realization of hybrid entanglement between discrete-variable (single photon) and continuous-variable states (coherent states). A highly transmissive beam splitter (HTBS) is used for interaction of the ingredients.…

Quantum Physics · Physics 2018-05-22 Sergey A. Podoshvedov

Continuous-variable (CV) entanglement is a valuable resource in the field of quantum information. One source of CV entanglement is the correlations between the position and momentum of photons in a two-mode squeezed state of light. In this…

Quantum Physics · Physics 2021-02-24 Colin Vendromin , Marc M. Dignam

We propose the use of hybrid entanglement in an entanglement swapping protocol, as means of distributing a Bell state with high fidelity to two parties, Alice and Bob. The hybrid entanglement used in this work is described as a discrete…

Quantum Physics · Physics 2020-12-01 R. C. Parker , J. Joo , T. P. Spiller

We explore a scheme based on adding a nonlocal photon and subtracting some number of photons to entangle the initial single-mode squeezed vacuum (SMSV) state with the photon state. In a realistic model of interaction of the SMSV state with…

Quantum Physics · Physics 2025-02-20 Mikhail S. Podoshvedov , Sergey A. Podoshvedov

We propose and develop theory of quantum teleportation of unknown qubit based on interaction mechanism between discrete-variable (DV) and continuous-variable (CV) states on highly transmissive beam splitter (HTBS). This DV-CV interaction…

Quantum Physics · Physics 2019-02-20 Sergey A. Podoshvedov
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