582 citations · 2.7k across the 30 of their papers we have counts for
30 papers
Spectroscopy and Coherence of an Excited-State Transition in Tm:YAlO at Telecommunication Wavelength
Luozhen Li, Akshay Babu Karyath, Julien Bertrand +12
We characterize spectroscopic and coherence properties of the 1451.37 nm excited-state zero-phonon line (ZPL) between the and the manifolds of a thulium-dop…
Optical Investigations of Coherence and Relaxation Dynamics of a Thulium-doped Yttrium Gallium Garnet Crystal at sub-Kelvin Temperatures for Optical Quantum Memory
Antariksha Das, Mohsen Falamarzi Askarani, Jacob H. Davidson +7
Rare-earth ion-doped crystals are of great interest for quantum memories, a central component in future quantum repeaters. To assess the promise of 1 Tm-doped yttrium ga…
Hardware requirements for trapped-ion based verifiable blind quantum computing with a measurement-only client
Janice van Dam, Guus Avis, Tzula B Propp +4
In blind quantum computing, a user with a simple client device can perform a quantum computation on a remote quantum server such that the server cannot gain knowledge about the com…
Requirements for upgrading trusted nodes to a repeater chain over 900 km of optical fiber
Francisco Ferreira da Silva, Guus Avis, Joshua A. Slater +1
We perform a numerical study of the distribution of entanglement on a real-world fiber grid connecting the German cities of Bonn and Berlin. The connection is realized using a chai…
High-Q magnetic levitation and control of superconducting microspheres at millikelvin temperatures
Joachim Hofer, Rudolf Gross, Gerard Higgins +11
We report the levitation of a superconducting lead-tin sphere with 100 micrometer diameter (corresponding to a mass of 5.6 micrograms) in a static magnetic trap formed by two coils…
Long-Range QKD without Trusted Nodes is Not Possible with Current Technology
Bruno Huttner, Romain Alléaume, Eleni Diamanti +11
A recently published patent (https://www.ipo.gov.uk/p-ipsum/Case/PublicationNumber/GB2590064) has claimed the development of a novel quantum key distribution protocol purporting to…
Deployed MDI-QKD and Bell-State Measurements Coexisting with Standard Internet Data and Networking Equipment
Remon C. Berrevoets, Thomas Middelburg, Raymond F. L. Vermeulen +8
The forthcoming quantum Internet is poised to allow new applications not possible with the conventional Internet. The ability for both quantum and conventional networking equipment…
Spectrally Multiplexed Hong-Ou-Mandel Interference
Oriol Pietx-Casas, Gustavo Castro do Amaral, Tanmoy Chakraborty +4
We explore the suitability of a Virtually-Imaged Phased Array (VIPA) as a Spectral-to-Spatial Mode-Mapper (SSMM) for applications in quantum communication such as a quantum repeate…
A long-lived solid-state optical quantum memory for high-rate quantum repeaters
Mohsen Falamarzi Askarani, Antariksha Das, Jacob H. Davidson +8
We argue that long optical storage times are required to establish entanglement at high rates over large distances using memory-based quantum repeaters. Triggered by this conclusio…
Stationary optomechanical entanglement between a mechanical oscillator and its measurement apparatus
C. Gut, K. Winkler, J. Hoelscher-Obermaier +9
We provide an argument to infer stationary entanglement between light and a mechanical oscillator based on continuous measurement of light only. We propose an experimentally realiz…
Non-classical correlations between single photons and phonons from a mechanical oscillator
Ralf Riedinger, Sungkun Hong, Richard A. Norte +6
Interfacing a single photon with another quantum system is a key capability in modern quantum information science. It allows quantum states of matter, such as spin states of atoms,…
Entanglement swapping with quantum-memory-compatible photons
Jeongwan Jin, Marcel. li Grimau Puigibert, Lambert Giner +8
We report entanglement swapping with time-bin entangled photon pairs, each constituted of a 795 nm photon and a 1533 nm photon, that are created via spontaneous parametric down con…
Practical Quantum Repeaters with Parametric Down-Conversion Sources
Hari Krovi, Saikat Guha, Zachary Dutton +3
Conventional wisdom suggests that realistic quantum repeaters will require quasi-deterministic sources of entangled photon pairs. In contrast, we here study a quantum repeater arch…
Measurement-device-independent quantum key distribution: from idea towards application
Raju Valivarthi, Itzel Lucio-Martinez, Philip Chan +13
We assess the overall performance of our quantum key distribution (QKD) system implementing the measurement-device-independent (MDI) protocol using components with varying capabili…
Efficient Bell state analyzer for time-bin qubits with fast-recovery WSi superconducting single photon detectors
Raju Valivarthi, Itzel Lucio-Martinez, Allison Rubenok +9
We experimentally demonstrate a high-efficiency Bell state measurement for time-bin qubits that employs two superconducting nanowire single-photon detectors with short dead-times,…
Rate-loss analysis of an efficient quantum repeater architecture
Saikat Guha, Hari Krovi, Christopher A. Fuchs +4
We analyze an entanglement-based quantum key distribution (QKD) architecture that uses a linear chain of quantum repeaters employing photon-pair sources, spectral-multiplexing, lin…
An integrated processor for photonic quantum states using a broadband light-matter interface
Erhan Saglamyurek, Neil Sinclair, Joshua A. Slater +3
Faithful storage and coherent manipulation of quantum optical pulses are key for long distance quantum communications and quantum computing. Combining these functions in a light-ma…
Device-dependent and device-independent quantum key distribution without a shared reference frame
Joshua A. Slater, Cyril Branciard, Nicolas Brunner +1
Standard quantum key distribution (QKD) protocols typically assume that the distant parties share a common reference frame. In practice, however, establishing and maintaining a goo…
Spectral multiplexing for scalable quantum photonics using an atomic frequency comb quantum memory and feed-forward control
Neil Sinclair, Erhan Saglamyurek, Hassan Mallahzadeh +8
Future multi-photon applications of quantum optics and quantum information science require quantum memories that simultaneously store many photon states, each encoded into a differ…
A Flexible Source of Non-Degenerate Entangled Photons Based on a Two-Crystal Sagnac Interferometer
Terence E. Stuart, Joshua A. Slater, Felix Bussieres +1
Sources of entangled photon pairs are a key component in both fundamental tests of quantum theory and practical applications such as quantum key distribution and quantum computing.…
Real-world two-photon interference and proof-of-principle quantum key distribution immune to detector attacks
Allison Rubenok, Joshua A. Slater, Philip Chan +2
Several vulnerabilities of single photon detectors have recently been exploited to compromise the security of quantum key distribution (QKD) systems. In this letter we report the f…
Two-photon interference of weak coherent laser pulses recalled from separate solid-state quantum memories
Jeongwan Jin, Joshua A. Slater, Erhan Saglamyurek +6
Quantum memories for light, which allow the reversible transfer of quantum states between light and matter, are central to the development of quantum repeaters, quantum networks, a…
Modeling a measurement-device-independent quantum key distribution system
Philip Chan, Joshua A. Slater, Itzel Lucio-Martinez +2
We present a detailed description of a widely applicable mathematical model for quantum key distribution (QKD) systems implementing the measurement-device-independent (MDI) protoco…
Conditional detection of pure quantum states of light after storage in a waveguide
Erhan Saglamyurek, Neil Sinclair, Jeongwan Jin +7
Conditional detection is an important tool to extract weak signals from a noisy background and is closely linked to heralding, which is an essential component of protocols for long…