Information about Entanglement Swapping

At Amity Institute of Applied Sciences, Amity University, Noida, India. 14 Dec 2012.

Outline 1. Quantum State 2. Quantum Entanglement 3. Quantum Teleportation 4. Entanglement Swapping 2

Outline 1. Quantum State 2. Quantum Entanglement 3. Quantum Teleportation 4. Entanglement Swapping 3

|Ψ = α|0 + β|1 4

|Ψ = α|0 + β|1 5 basis states

|Ψ = α|0 + β|1 6 basis states complex numbers

|Ψ = α|0 + β|1 7 basis states complex numbers linear superposition

|Ψ corresponds to a wave function. 8

|Ψ corresponds to a wave function. 9 wave packet vector in complex Hilbert Space

|Ψ corresponds to a wave function. 10 wave packet vector in complex Hilbert Space superposition of eigenstates of an observable

|Ψ corresponds to a wave function. 11 wave packet vector in complex Hilbert Space superposition of eigenstates of an observable measurement leads to collapse

12 Bloch Sphere

|Ψ yields one classical bit post-measurement. 13

|Ψ yields one classical bit post-measurement. 14 basis state |0 with probability ||2 probabilistic outcome

Outline 1. Quantum State 2. Quantum Entanglement 3. Quantum Teleportation 4. Entanglement Swapping 15

N(|0012 + |1112) 16

N(|0012 + |1112) 17 inseparable

N(|0012 + |1112) 18 inseparable nonlocal correlation

N(|0012 + |1112) 19 inseparable nonlocal correlation monogamous

Outline 1. Quantum State 2. Quantum Entanglement 3. Quantum Teleportation 4. Entanglement Swapping 20

Disembodied transport of a physical system. 21

22 Teleportation Protocol: Schematic Diagram

Outline 1. Quantum State 2. Quantum Entanglement 3. Quantum Teleportation 4. Entanglement Swapping 23

Transfer of nonlocal correlations between quantum systems. 24

25 Swapping Protocol: Schematic Diagram

Thank you. 26

Questions? 27

Quantum teleportation is a process by which quantum information ... The so-called entanglement swapping is a simple and illustrative example.

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University of Geneva physicist Matthäus Halder, the experiment's corresponding scientist, explained to PhysOrg.com, “Normally, entanglement between two ...

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1998 demonstrierte er Entanglement Swapping, die Teleportation von verschränkten Zuständen.

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Motivated by the question of which kind of physical interactions and processes are needed for the production of quantum entanglement, Peres has put forward ...

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1 Experimental delayed-choice entanglement swapping . Xiao-song Ma1,2, Stefan Zotter 1, Johannes Kofler 1,a, Rupert Ursin 1, Thomas Jennewein1,b, Časlav ...

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arXiv:quant-ph/0511047v1 6 Nov 2005 Entanglement swapping, light cones and elements of reality Anne Broadbent Andr´e Allan M´ethot D´epartement d ...

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2 Entanglement swapping Let us consider four qubits, denoted as {S1,S2,S3,S4}. Importantly, the four qubits do not interact with each other. At initial time of

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It is also possible to create entanglement between quantum systems that never directly interacted, through the use of entanglement swapping.

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Quantum teleportation and entanglement swapping for spin systems Dominic W Berry1 and Barry C Sanders1,2 1 Department of Physics and Centre for Advanced ...

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Hi there, If we set-up an experiment for entanglement swapping, the two entangled pairs of photons are: Group 1: A, B Group 2: X, Y Take B and Y and ...

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