From b1f2467f7461a1b9f2944175a3d1e6c88889e086 Mon Sep 17 00:00:00 2001 From: jaseg Date: Wed, 4 Sep 2024 21:33:31 +0200 Subject: [PATCH] More references --- chapter-qkd/chapter.tex | 20 +++++++++++--------- main.bib | 28 +++++++++++----------------- 2 files changed, 22 insertions(+), 26 deletions(-) diff --git a/chapter-qkd/chapter.tex b/chapter-qkd/chapter.tex index cd4e86a..4668678 100644 --- a/chapter-qkd/chapter.tex +++ b/chapter-qkd/chapter.tex @@ -635,10 +635,10 @@ revolves around managing the levels of these key stores to avoid depletion. As we discussed above, when it comes down to practical, end-to-end security properties, Quantum Key Distribution removes trust in the hardness of particular mathematical problems (good!), but increases trust in the physical integrity of the transceivers of the QKD link (bad!). In scenarios where the communicating parties are all located -within physical proximity--in QKD, meaning within at most a few hundred kilometers from each other depending on secret -key rate requirements--this added trust is of no consequence because the communcating parties' hardware must be trusted +within physical proximity---in QKD, meaning within at most a few hundred kilometers from each other depending on secret +key rate requirements---this added trust is of no consequence because the communcating parties' hardware must be trusted in either QKD-assisted or purely classical setups. However, this trust requirement becomes a burden as soon as at least -one party is too far away (or higher secret key rates are required), as now physically trusted relays become necessary. +one party is too far away or when higher secret key rates are required, as now physically trusted relays become necessary. Extrapolating to practical deployments, we can make two predictions. First, as QKD only solves key distribution, but the actual data transfer still happens through normal off-the-shelf telecommunications components in QKD networks, there is @@ -697,13 +697,13 @@ is optical, and as such can be implemented with room-temperature fiber-optic com detectors may require cooling in some systems, but unlike something like an ion trap quantum computer's processor, energy-intensive deep cryogenic cooling is not necessary. Most manufacturers don't quote the power requirements of their systems, but we were able to find that IDQuantique specifies their QKD systems to be able to run off a single -\qty{300}{\watt} power supply. In an intertial HSM, power up to several \unit{\kilo\watt} can easily be transferred to -the payload with through-axis cables. +\qty{300}{\watt} power supply\cite{ClavisXGQKD2024}. In an inertial HSM, power up to several \unit{\kilo\watt} can +easily be transferred to the payload with through-axis cables. \paragraph{Cooling.} -While the few hundred watt of power that QKD systems require could easily be transported through the mesh of a a +While the few hundred Watt of power that QKD systems require could easily be transported through the mesh of a a traditional HSM as well, cooling that amount of thermal load purely by heat conduction through centimeters of epoxy -resin would make implementation infeasible in traditional HSM. In an IHSM, on the other hand, up to several +resin would make implementation infeasible in traditional HSM. In an IHSM on the other hand, up to several \unit{\kilo\watt} can easily be dissipated through forced-air cooling since the rotating security mesh can have an arbitrary amount of longitudinal slots or holes. @@ -785,8 +785,9 @@ inside the waveguide, and allows some small portion of it to escape from the fib of both attenuation and dispersion.}. With QKD being especially sensitive to even small amounts of loss, care has to be taken to maximize the bend radius of the fiber optic connections. A common specification of minimum bend radius in telecom singlemode fibers taking into account not just optical loss but also the mechanical stability of the fiber's -polymer coating is $10\times$ the coated fiber's diameter, which equates to \qty{9}{\milli\meter} for -common \qty{0.9}{\milli\meter} fiber pigtails. +polymer coating is $10\times$ the coated fiber's diameter, which equates to \qty{9}{\milli\meter} for common +\qty{0.9}{\milli\meter} fiber pigtails, corresponding to approximately \qty{1}{\decibel} of loss in the +\qty{1550}{\nano\meter} band\cite{schermerImprovedBendLoss2007}. \todo{cite bend radius spec. fs.com has some on their pigtails. thorlabs on their SM-28 fiber has no spec, but specs loss at \qty{25}{\milli\meter} radius.} @@ -804,6 +805,7 @@ loss at \qty{25}{\milli\meter} radius.} outer diameter coiled to a constant bend radius of \qty{9}{\milli\meter}. The lead angle of the resulting helix is \qty{61.5}{\degree}, and past the tube exit, only \qty{5.16}{\milli\meter} of inter-mesh space are necessary. \figureattrib{helix_transition.png}} + \label{qkd_fig_fiber_helix} \end{figure} Based on these specifications and adding some \qty{10}{\milli\meter}, diff --git a/main.bib b/main.bib index 4feee28..9aceec6 100644 --- a/main.bib +++ b/main.bib @@ -854,6 +854,17 @@ file = {/home/jaseg/Zotero/storage/RKFV7HX5/Choudhuri et al. - 2021 - Fluid MPC Secure Multiparty Computation with Dyna.pdf} } +@online{ClavisXGQKD2024, + title = {Clavis {{XG QKD System Brochure}}}, + date = {2024-07}, + url = {https://www.idquantique.com/quantum-safe-security/products/clavis-xg-qkd-system/}, + urldate = {2024-09-04}, + abstract = {Introducing the Clavis XG: IDQ’s long distance and backbone Quantum Key Distribution (QKD) solution, the ultimate in Quantum-Safe Security.}, + langid = {british}, + organization = {ID Quantique}, + file = {/home/jaseg/Zotero/storage/K2KS43DP/clavis-xg-qkd-system.html} +} + @article{clementiComparisonTaggingTechnologies2018, title = {Comparison of {{Tagging Technologies}} for {{Safeguards}} of {{Copper Canisters}} for {{Nuclear Spent Fuel}}}, author = {Clementi, Chiara and Littmann, François and Capineri, Lorenzo}, @@ -928,23 +939,6 @@ file = {/home/jaseg/Sync/Research/Zotero/Cuellar et al_1987_Static fatigue lifetime of optical fibers in bending.pdf} } -@article{cuellarStaticFatigueLifetime1987a, - title = {Static Fatigue Lifetime of Optical Fibers in Bending}, - author = {Cuellar, E. and Roberts, D. and Middleman, L.}, - date = {1987-01}, - journaltitle = {Fiber and Integrated Optics}, - shortjournal = {Fiber and Integrated Optics}, - volume = {6}, - number = {3}, - pages = {203--213}, - issn = {0146-8030, 1096-4681}, - doi = {10.1080/01468038708223680}, - url = {http://www.tandfonline.com/doi/abs/10.1080/01468038708223680}, - urldate = {2024-08-28}, - langid = {english}, - file = {/home/jaseg/Zotero/storage/QRE6ZGLT/Cuellar et al. - 1987 - Static fatigue lifetime of optical fibers in bendi.pdf} -} - @article{curranModelingCharacterizationPCB2015, title = {Modeling and Characterization of {{PCB}} Coils for Inductive Wireless Charging}, author = {Curran, Brian and Maaß, Uwe and Fotheringham, Gerhard and Stevens, Nobby and Ndip, Ivan and Lang, Klaus-Dieter},