mars quantum entanglement applications 2013-05-25

7/30/2019 Mars Quantum Entanglement Applications 2013-05-25

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2012 Quantum EntanglementResearch Highlights

(With Possible Applications to Mars Missions)

Gary V StephensonSeculine Consulting

25 May 2013

_________________S_E_C_U_L_I_N_E_____C_O_N_S_U_L_T_I_N_G_________________


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Why a Quantum Entanglement talk?

Because 2012 was a revolutionary year for quantumentanglement experiments

Included in this talk are three experiments:1) Canary Island Long Range Quantum State Teleportation2) Quantum Spin Liquid (QSL) in Herbertsmithite3) Entangled Photons in Orbital Angular Momentum (OAM)

Twisted BeamsBecause it is fun and instructive to speculate on whichapplications may be possible and which are not possible

Included in this talk are three possible applications:1) Frequency Time Standard delivery at a distance2) Communication at a distance3) Power coupling at a distance

Action at a distance applications will all hinge on theextent to which coherence can be maintained and utilized


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Part 1: A Summary of RecentQuantum Entanglement Experiments

Part 1, A Summary Report of Recent Quantum Entanglement

Experiments:What is Quantum Entanglement?Experiment #1: Canary Island Long Range Quantum StateTeleportation

Experiment #2: Quantum Spin Liquid (QSL) in HerbertsmithiteExperiment #3: Entangled Photons in Orbital Angular Momentum(OAM) Twisted Beams


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What is Quantum Entanglement?1) A coupled set of quantum states

Can be a large enough set of coupledstates to result in a macroscopic effect

2) A source of quantum coherenceCan lead to novel behavior such assuper conductivity and super fluidity

3) An example of non-localitySpace-time coordinates are not relevant

to coupled states

Credit: http://www.daviddarling.info/images/quantum_entanglement.gif

Notional two stateentanglement example:

No decay Live catDecay Dead cat

A quantum state here

Affects a quantumstate here

Credit: http://www.upscale.utoronto.ca/GeneralInterest/Harrison/SchrodCat/SchrodCat.html

Both part of same qubit


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Experiment #1: Canary Island Long RangeQuantum State Teleportation

What was the experiment ? Attempt to teleport a quantum bit (qubit) fromone island to another

What was the result ? When the quantum state of one photon was altered,the quantum state of the second photon was altered instantaneously,faster than the speed of light, without even the smallest of delays. Proof of quantum state teleportation across distances useful in space.What is the significance ? A record distance of 143 kilometers (89 miles)

Photo credit: Ref [3]

Diagram credit:X-S Ma et al. Nature 000 , 1-5 (2012) doi:10.1038/nature11472


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Experiment #2: Quantum Spin Liquid(QSL) in Herbertsmithite

What was the experiment ? Used neutron scattering to measurespin states present within the Herbertsmitite crystal

What was the result ? Positively confirmed coherent spin statestructure within the crystalWhat is the significance ?

Measurement of macroscopic liquidquantum entanglement

Inelastic neutron scattering from the spin excitations,plotted in reciprocal space: ac, Measurements were

made at T = 1.6 K on a single-crystal sample of ZnCu3(OD)6Cl2. Figure 1 from Reference [1]Herbertsmitite , Photo Credit:Tianheng Han / MIT


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Experiment #3: Entangled Photons in OrbitalAngular Momentum (OAM) Twisted Beams

What was the experiment ?Attempt to entangle Orbital

Angular Momentum states of photon pairs (+OAM with OAM)

What was the result ?Successful conversion of

polarization entangled photonsinto OAM entangled photons tovery high OAM numbers

What is the significance ?

It is now practical to couplemacroscopic angular momentum(e.g. via an optical spanner) toentangled photon states

Photo credit: Fibre-optic spanner(macro version of EO spanner),

http://images.gizmag.com/hero/fiber-opticspanner.jpg

Laguerre-Gaussian

Mode OAMEntangled

PhotonOutput

False-color image of a laser beam exhibiting a superposition of 10 right-handed and 10 left-handed quanta of orbital angular

momenta, making 10 + 10 = 20 bright spots on the inner ring.Photons in such modes rotate simultaneously clockwise andanticlockwise. (Courtesy: Robert Fickler, University of Vienna) [2]

EntangledPolarizationPhoton Pair

Input

Polarizationconverted to

angularmomentumusing SLM

Credit: http://www.sciencemag.org/content/suppl /2012/10/31/338.6107.640.DC1/Fickler.SM.pdf


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Part 1 Summary

1) Canary Island Long Range Quantum State Teleportation

demonstrates a new record for the longest separation of a qubitbetween two entangled photons: 143 km.2) Quantum Spin Liquid (QSL) in Herbertsmithite demonstratesmacroscopically entangled liquid spin states in a solid crystal

3) Entangled Photons in Orbital Angular Momentum (OAM) Twisted Beams demonstrates a light beam with a macroscopic quantity of entangled angular momentum, and a conversion mechanism fromentangled polarization photons

Quantum Entanglement and quantum coherence may enable new applications not previously thought possible.


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Quantum Entanglement Research Highlights

Part 2: Possible Applications to Mars Missions

Gary V StephensonSeculine Consulting

25 May 2013

_________________S_E_C_U_L_I_N_E_____C_O_N_S_U_L_T_I_N_G_________________


10/18

Part 2: Possible Applications of Quantum Entanglement

Part 2, A Summary Possible Quantum Entanglement Applications

Part 2A: The No-No Theorems define what you may not doNo Teleportation TheoremNo Communication TheoremNo Cloning Theorem

Part 2B: Possible action-at-a-distance applications - what you mightbe able to do

Application #1 : Using Long Range Quantum State Teleportation tocouple atomic clock frequency time reference at a distance

Application #2 : Using Herbertsmithite Quantum Spin Liquids tocouple communication signals at a distance

Application #3 : Using Quantum Entangled Photons in Orbital Angular

Momentum (OAM) Twisted Beams to couple power at a distance


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The No Teleportation TheoremDescription of theorem : A classical information channel can nottransmit quantum information. (By transmit, we mean transmission

with full fidelity.) [4]

Counter-example : Quantum teleportation schemes may utilize bothresources to achieve what is impossible for either alone, per reference [4],

as demonstrated by X-S Ma et al. Nature 000, 1-5 (2012)doi:10.1038/nature11472.

This channel cant send qubits

but taken together thesetwo channels can.


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The No Communication Theorem

Description of theorem : No communication can be achieved onlyvia a shared entangled state. Therefore shared entanglement alonecan not be used to transmit any information. [4]

Counter-example : Peacock and Hepburn, Begging the SignalingQuestion, arXiv:quant-ph/9906036v1 , as referenced in [4]

Photo Credit: Adapted from Quantum Entanglement in Optical Fiber, OSA, March 2008

Quantum ChannelQuantum Channel


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The No Cloning TheoremDescription of theorem : No perfect quantum copies of arbitraryquantum states are possible. Therefore you cannot clone states. [4]

Counter-example : L.-A. Wu, D. A. Lidar, and S. Schneider, Long-range

entanglement generation via frequent measurements, PHYSICAL REVIEWA 70, 032322 (2004), Ref. [6]


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Application #1:Frequency Time Standard at a distance

Apply long range teleportation of quantum states to thetransmission of a reference timing signal for a remote frequencytime standardSource could be a GPS conditioned atomic clock ensemble on EarthUser would be at an arbitrary location such as Mars or a Marsbound spacecraftAdvantages include less launch mass and higher accuracy

1) Atomic Clock signal coupled tospin up/down transitions ofentangled photons

2) Down/up spin transitions arereplicated remotely via

quantum entanglement,reproducing clock signal

(action at a distance)


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Application #2:Communication at a distance

Applying Quantum Spin Liquid (QSL) in coupled pieces of HerbertsmithiteCrystal to interplanetary Communication:

Dont we now have Instantaneous, Faster Than Light (FTL),Duplex Communication between Earth and Mars?

(t)

(t)

1) Entangle QSL in Xtal1 :

2) Entangle QSL in Xtal2 :

3) Cleave Xtal1 and sendhalf to Mars

4) Cleave Xtal2 and sendhalf to Mars

5) Modulate QSL1 spinwith magnetic field:

6) Readout QSL1 spin withneutron scattering 7) Modulate QSL2 spin

with magnetic field

8) Readout QSL2 spin withneutron scattering


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Application #3:Power Coupling at a distance

Couple entangled polarization photon pairs into a first pool of QuantumSpin Liquid (QSL)

Remotely locate a second pool of QSL entangled with the firstUse second pool of QSL to drive an entangled photon pair outputUse entangled photon pair output to create an OAM twisted photon beamOAM twisted photon beam drives a generator via angular momentumcouplingVery inefficient: exercise to the reader to think of more efficient quantumentanglement coupling schemes that are capable of coupling power

(action at a distance)

1) EntangledPolarizationPhoton Pair

Input

2) Polarizationconverted to

angularmomentumusing SLM

3) OAM couplesto QSL

4) QSL couplesto OAM

5) OAM twistedbeam rotates

generator


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Parts 1&2 Conclusions & Summary

Experiments in 2012 show it is possible to:Demonstrate Long Range Quantum State TeleportationMeasure a Quantum Spin Liquid (QSL) in HerbertsmithiteEntangle Photons in Orbital Angular Momentum (OAM) Twisted Beams

Some applications are not possible, but one must be careful in how the

No-No Theorems are applied and NOT over-apply them

Action-at-a-distance applications that may be possible:Frequency Time Standard delivery at a distanceCommunication at a distancePower Transfer at a distance

Much, much more research must be performed to development methodsfor coherence maintenance and to understand the boundaries of quantumentanglement application


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mars quantum entanglement applications 2013-05-25

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