575 citations · 2.1k across the 24 of their papers we have counts for
24 papers
All-Gaussian State Discrimination Beyond the Coherent Helstrom Bound
Angus Walsh, Lorcan Conlon, Biveen Shajilal +5
A core problem in communications is the optimal discrimination of binary-phase-shift-keyed (BPSK) signals. A longstanding goal has been to reach the fundamental quantum limit, know…
Improving Gaussian channel simulation using non-unity gain heralded quantum teleportation
Biveen Shajilal, Lorcán O. Conlon, Angus Walsh +5
Gaussian channel simulation is an essential paradigm in understanding the evolution of bosonic quantum states. It allows us to investigate how such states are influenced by the env…
Verifying the security of a continuous variable quantum communication protocol via quantum metrology
Lorcan O. Conlon, Biveen Shajilal, Angus Walsh +4
Quantum mechanics offers the possibility of unconditionally secure communication between multiple remote parties. Security proofs for such protocols typically rely on bounding the…
12.6 dB squeezed light at 1550 nm from a bow-tie cavity for long-term high duty cycle operation
Biveen Shajilal, Oliver Thearle, Aaron Tranter +5
Squeezed states are an interesting class of quantum states that have numerous applications. This work presents the design, characterisation, and operation of a bow-tie optical para…
Quantum Enhanced Microrheology of a Living Cell
Michael A. Taylor, Jiri Janousek, Vincent Daria +4
We demonstrate the first biological measurement with precision surpassing the quantum noise limit. Lipid particles within a living yeast cell are tracked with sub-shot noise sensit…
Non-Gaussian mechanical motion via single and multi-phonon subtraction from a thermal state
Georg Enzian, Lars Freisem, John J. Price +7
Quantum optical measurement techniques offer a rich avenue for quantum control of mechanical oscillators via cavity optomechanics. In particular, a powerful yet little explored com…