Q2020 Systems VisionBen Keitch

Q2020 – Top level System• Nodes need 1x0.6x0.6m volume• Need to be close together (photonic entanglement ~1m) • Either 20x 0.7m high units or 7x full-height racks:

TECHNOLOGY SUBSYSTEMS1. Optical X-Connect2. Optical Power

Supply3. Beam delivery4. Ion trap module5. Control System

Q2020 – Single node : 1, 3, 4 & 5Ion trap, vacuum, RF driver, magnetics, and optics on 2-level bread boardAmps and drivers

DDS and local control

Forced-air cooling

Laser Power bus : 2

Diode lasers (ECDL) boughtTiSaph and pulsed laser boughtStabilisation and control in placeEnough power available for 20 units (?)– Can amplify with injected slaves– Microwaves might reduce requirements

Q2020 – Trap and Optics : 1, 3 & 4

1: Collection optics and X-connect3: Beam delivery and AO switches4: RF Drive, vacuum and trap19 inch format: 29 x 29cm 5U high

Q2020 – Node electronics : 2DDS waveformsDAC motional controlAO drive ampsProcessorRF DriveDetectionX-Switch DriveMagnetic field control

19 inch rack 6U high+

3U for amps+

1U cooling

Trap Technology Summary : 4

Machined Wafer SurfaceTechnology Machined metal and

ceramicsMetal plated substrate. Laser machined or etched

MEMS or microfabrication

Size 50mm 5mm 0.5mm

Ion Lifetime hours - days hours minutes

Shuttle Speed ms ms-us us

Reliability high high medium

Cost high medium medium/low

Manufactubility low low high

Zones 1-4 5-10 many

Supplier In-house In-house/MEMS partner? Sussex, NPL, Sandia, GTRI

Demonstrator timelines

1st Half

2nd Half

1st Half

2nd Half

1st Half

2nd Half

1st Half

2nd Half

1st Half

WP0 Demonstrator

WP1 Ion trap module development

WP3 Optical Cross Connect

WP1,3,9 Optical power supply

WP1,3,9 Beam Delivery

M20 Bipartite interconnect (BI) between two ion traps

(ITs)

M25 BI between two

multi-ion traps (MITs)

M30 Star interconnect (SI) between

five MITs

M40 Engineered

MIT

M46 Engineered SI between

five MITs

M52 Engineered lattice of 20 MITs each

with SI

2015 2016 2017

WP9 Control

2018 2019

Q2020 - Trap

1st Half

2nd Half

1st Half

2nd Half

1st Half

2nd Half

1st Half

2nd Half

1st Half

Microwave Trap

Blade trap

Wafer Trap

Surface Trap

M20 Bipartite interconnect (BI) between two ion traps

(ITs)

M25 BI between two

multi-ion traps (MITs)

M30 Star interconnect (SI) between

five MITs

M40 Engineered

MIT

M46 Engineered SI between

five MITs

M52 Engineered lattice of 20 MITs each

with SI

2015 2016 2017 2018 2019

Industry Projects

M20 Bipartite

interconnect (BI) between

two ion traps (ITs)

M25 BI between

two multi-ion

traps (MITs)

M30 Star interconnec

t (SI) between five MITs

M40 Engineered

MIT

M46 Engineere

d SI between five MITs