411 citations · 971 across the 14 of their papers we have counts for
14 papers
Zeeman optical pumping of Rb atoms in a hollow core photonic crystal fibre
Tomasz Krehlik, Artur Stabrawa, Rafał Gartman +3
Preparation of an atomic ensemble in a particular Zeeman state is a critical step of many protocols for implementing quantum sensors and quantum memories. These devices can also be…
Proposal for spin squeezing in rare-earth ion-doped crystals with a four-color scheme
Tamás Kriváchy, Krzysztof T. Kaczmarek, Mikael Afzelius +2
Achieving spin squeezing within solid-state devices is a long standing research goal, due to the promise of their particularities, for instance their long coherence times, the poss…
Optical storage for 0.53 seconds in a solid-state atomic frequency comb memory using dynamical decoupling
Adrian Holzäpfel, Jean Etesse, Krzysztof T. Kaczmarek +3
Quantum memories with long storage times are key elements in long-distance quantum networks. The atomic frequency comb (AFC) memory in particular has shown great promise to fulfill…
Optical spin-wave storage in a solid-state hybridized electron-nuclear spin ensemble
Moritz Businger, Alexey Tiranov, Krzysztof T. Kaczmarek +4
Solid-state impurity spins with optical control are currently investigated for quantum networks and repeaters. Among these, rare-earth-ion doped crystals are promising as quantum m…
Optimal Coherent Filtering for Single Noisy Photons
S. Gao, O. Lazo-Arjona, B. Brecht +6
We introduce a filter using a noise-free quantum buffer with large optical bandwidth that can both filter temporal-spectral modes, as well as inter-convert them and change their fr…
Experimental demonstration of quantum effects in the operation of microscopic heat engines
James Klatzow, Jonas N. Becker, Patrick M. Ledingham +7
The heat engine, a machine that extracts useful work from thermal sources, is one of the basic theoretical constructs and fundamental applications of classical thermodynamics. The…
High-speed noise-free optical quantum memory
K. T. Kaczmarek, P. M. Ledingham, B. Brecht +9
Quantum networks promise to revolutionise computing, simulation, and communication. Light is the ideal information carrier for quantum networks, as its properties are not degraded…
High Efficiency Raman Memory by Suppressing Radiation Trapping
S. E. Thomas, J. H. D. Munns, K. T. Kaczmarek +7
Raman interactions in alkali vapours are used in applications such as atomic clocks, optical signal processing, generation of squeezed light and Raman quantum memories for temporal…
Theory of noise suppression in Λ-type quantum memories by means of a cavity
J. Nunn, S. Thomas, J. H. D. Munns +10
Quantum memories, capable of storing single photons or other quantum states of light, to be retrieved on-demand, offer a route to large-scale quantum information processing with li…
Two-way interconversion of millimeter-wave and optical fields in Rydberg gases
Martin Kiffner, Amir Feizpour, Krzysztof T. Kaczmarek +2
We show that cold Rydberg gases enable an efficient six-wave mixing process where terahertz or microwave fields are coherently converted into optical fields and vice versa. This pr…
A Cavity-Enhanced Room-Temperature Broadband Raman Memory
D. J. Saunders, J. H. D. Munns, T. F. M. Champion +6
Broadband quantum memories hold great promise as multiplexing elements in future photonic quantum information protocols. Alkali vapour Raman memories combine high-bandwidth storage…
Absolute frequency references at 1529 nm and 1560 nm using modulation transfer spectroscopy
Y. Natali Martinez de Escobar, Silvana Palacios Álvarez, Simon Coop +3
We demonstrate a double optical frequency reference (1529 nm and 1560 nm) for the telecom C-band using Rb modulation transfer spectroscopy. The two reference frequencies are…
Ultrahigh and persistent optical depths of caesium in Kagomé-type hollow-core photonic crystal fibres
Krzysztof T. Kaczmarek, Dylan J. Saunders, Michael R. Sprague +7
Alkali-filled hollow-core fibres are a promising medium for investigating light-matter interactions, especially at the single-photon level, due to the tight confinement of light an…
Broadband, noise-free optical quantum memory with neutral nitrogen-vacancy centers in diamond
E. Poem, C. Weinzetl, J. Klatzow +6
It is proposed that the ground-state manifold of the neutral nitrogen-vacancy center in diamond could be used as a quantum two-level system in a solid-state-based implementation of…