UK Quantum Technology Landscape 2014 - epsrc

Feb 14, 2014 - scientific applications for most aspects of quantum technology, including ..... atomic clock demonstrated was an ammonia maser device built by Lyons and ...... 53 Rydberg atoms have at least one electron in a very "high" orbit ...
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UK UNCLASSIFIED

UK Quantum Technology Landscape 2014

Dr. Jonathan Pritchard Dr. Stephen Till

Defence Science and Technology Laboratory, Porton Down [email protected] 1 Final Version 14/02/2014 UNCONTROLLED DSTL/PUB75620

UK UNCLASSIFIED

UK Quantum Technology Landscape 2014 Contents 1.

Executive summary ......................................................................................................................... 7

2.

Introduction .................................................................................................................................. 10

3.

Overview of quantum technologies.............................................................................................. 11

4.

3.1.

Quantum physics .................................................................................................................. 11

3.2.

Quantum technology ............................................................................................................ 12

Technology areas .......................................................................................................................... 12 4.1.

Introduction .......................................................................................................................... 12

4.2.

Quantum timing and clocks .................................................................................................. 13

4.2.1.

Introduction .................................................................................................................. 13

4.2.2.

Technology development and accuracy of atomic clocks ............................................ 15

4.2.3.

Coherent population trapping (CPT) clocks .................................................................. 17

4.2.4.

Quantum logic and single ion clocks ............................................................................. 18

4.2.5.

Summary of current atomic clock performance ........................................................... 19

4.2.6.

Atom chip and lattice clocks ......................................................................................... 20

4.2.7.

Quantum clock synchronisation ................................................................................... 21

4.2.8.

Issues and challenges .................................................................................................... 21

4.2.9.

Synopsis......................................................................................................................... 22

4.3.

Quantum communications ................................................................................................... 23

4.3.1.

Introduction .................................................................................................................. 23

4.3.2.

Secure transmission of classical information ............................................................... 23

4.3.3.

QKD "2.0" ...................................................................................................................... 23

4.3.4.

QKD networks ............................................................................................................... 23

4.3.5.

Quantum information transmission and teleportation ................................................ 24

4.3.6.

Quantum random number generators (RNGs) ............................................................. 25