Attosecond X-ray Science
We generate attosecond pulses in the soft X-ray spectral range (200 eV and higher) since such pulses permit probing the flow of energy at the absorption edges of atoms inside molecules and materials.
READ MORE
2439339
1
nature
5
date
desc
5845
http://atto.icfo.es/myblog/wp-content/plugins/zotpress/
%7B%22status%22%3A%22success%22%2C%22updateneeded%22%3Afalse%2C%22instance%22%3Afalse%2C%22meta%22%3A%7B%22request_last%22%3A0%2C%22request_next%22%3A0%2C%22used_cache%22%3Atrue%7D%2C%22data%22%3A%5B%7B%22key%22%3A%22P8P93I5Z%22%2C%22library%22%3A%7B%22id%22%3A2439339%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Theidel%20et%20al.%22%2C%22parsedDate%22%3A%222024-11-04%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%20style%3D%26quot%3Bclear%3A%20left%3B%20%26quot%3B%26gt%3B%5Cn%20%20%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-left-margin%26quot%3B%20style%3D%26quot%3Bfloat%3A%20left%3B%20padding-right%3A%200.5em%3B%20text-align%3A%20right%3B%20width%3A%201em%3B%26quot%3B%26gt%3B1.%26lt%3B%5C%2Fdiv%26gt%3B%26lt%3Bdiv%20class%3D%26quot%3Bcsl-right-inline%26quot%3B%20style%3D%26quot%3Bmargin%3A%200%20.4em%200%201.5em%3B%26quot%3B%26gt%3BTheidel%2C%20D.%20%26lt%3Bi%26gt%3Bet%20al.%26lt%3B%5C%2Fi%26gt%3B%20Observation%20of%20a%20Multimode%20Displaced%20Squeezed%20State%20in%20High-Harmonic%20Generation.%20Preprint%20at%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.48550%5C%2FarXiv.2411.02311%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.48550%5C%2FarXiv.2411.02311%26lt%3B%5C%2Fa%26gt%3B%20%282024%29.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%20%20%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22preprint%22%2C%22title%22%3A%22Observation%20of%20a%20Multimode%20Displaced%20Squeezed%20State%20in%20High-Harmonic%20Generation%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%22%2C%22lastName%22%3A%22Theidel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22name%22%3A%22Philip%20Heinzel%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Viviane%22%2C%22lastName%22%3A%22Cotte%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Houssna%22%2C%22lastName%22%3A%22Griguer%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Mateus%22%2C%22lastName%22%3A%22Weis%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Ren%5Cu00e9%22%2C%22lastName%22%3A%22Sondenheimer%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Hamed%22%2C%22lastName%22%3A%22Merdji%22%7D%5D%2C%22abstractNote%22%3A%22High%20harmonic%20generation%20is%20a%20resource%20of%20extremely%20broad%20frequency%20combs%20of%20ultrashort%20light%20pulses.%20The%20non-classical%20nature%20of%20this%20new%20quantum%20source%20has%20been%20recently%20evidenced%20in%20semiconductors%20by%20showing%20that%20high%20harmonic%20generation%20generates%20multimode%20squeezed%20states%20of%20light.%20Applications%20in%20quantum%20information%20science%20require%20the%20knowledge%20of%20the%20mode%20structure%20of%20the%20created%20states%2C%20defining%20how%20the%20quantum%20properties%20distribute%20over%20the%20spectral%20modes.%20To%20achieve%20that%2C%20an%20effective%20Schmidt%20decomposition%20of%20the%20reduced%20photonic%20state%20is%20performed%20on%20a%20tripartite%20harmonic%20set%20by%20simultaneously%20measuring%20the%20second-%20and%20third-order%20intensity%20correlation%20function.%20A%20relatively%20high%20Schmidt%20number%20is%20predicated%20which%20indicates%20a%20rich%20mode%20structure%2C%20a%20useful%20resource%20in%20quantum%20technology.%20By%20modelling%20our%20data%20with%20a%20multimode%20displaced%20squeezed%20state%2C%20we%20retrieve%20the%20dependencies%20of%20the%20measured%20correlation%20as%20a%20function%20of%20the%20high%20harmonic%20driving%20laser%20intensity.%20The%20effective%20high-harmonic%20mode%20distribution%20is%20retrieved%2C%20and%20the%20strength%20of%20the%20contributing%20squeezing%20modes%20is%20estimated.%20Additionally%2C%20we%20demonstrate%20a%20significant%20violation%20of%20a%20Cauchy-Schwarz-type%20inequality%20for%20three%20biseparable%20partitions%20by%20multiple%20standard%20deviations.%20Our%20results%20confirm%20and%20extend%20the%20analysis%20of%20non-classical%20properties%20in%20semiconductor%20high-harmonic%20generation.%20The%20source%20operates%20at%20room%20temperature%20with%20compact%20lasers%2C%20and%20it%20could%20become%20a%20useful%20resource%20for%20future%20applications%20in%20quantum%20technologies.%22%2C%22genre%22%3A%22%22%2C%22repository%22%3A%22arXiv%22%2C%22archiveID%22%3A%22arXiv%3A2411.02311%22%2C%22date%22%3A%222024-11-04%22%2C%22DOI%22%3A%2210.48550%5C%2FarXiv.2411.02311%22%2C%22citationKey%22%3A%22%22%2C%22url%22%3A%22http%3A%5C%2F%5C%2Farxiv.org%5C%2Fabs%5C%2F2411.02311%22%2C%22language%22%3A%22%22%2C%22collections%22%3A%5B%22CULCKNQ7%22%5D%2C%22dateModified%22%3A%222024-11-06T08%3A34%3A42Z%22%7D%7D%2C%7B%22key%22%3A%225BFUK2VB%22%2C%22library%22%3A%7B%22id%22%3A2439339%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Lamprou%20et%20al.%22%2C%22parsedDate%22%3A%222024-10-22%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%20style%3D%26quot%3Bclear%3A%20left%3B%20%26quot%3B%26gt%3B%5Cn%20%20%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-left-margin%26quot%3B%20style%3D%26quot%3Bfloat%3A%20left%3B%20padding-right%3A%200.5em%3B%20text-align%3A%20right%3B%20width%3A%201em%3B%26quot%3B%26gt%3B1.%26lt%3B%5C%2Fdiv%26gt%3B%26lt%3Bdiv%20class%3D%26quot%3Bcsl-right-inline%26quot%3B%20style%3D%26quot%3Bmargin%3A%200%20.4em%200%201.5em%3B%26quot%3B%26gt%3BLamprou%2C%20T.%20%26lt%3Bi%26gt%3Bet%20al.%26lt%3B%5C%2Fi%26gt%3B%20Generation%20of%20non-classical%20and%20entangled%20light%20states%20using%20intense%20laser-matter%20interactions.%20Preprint%20at%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.48550%5C%2FarXiv.2410.17452%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.48550%5C%2FarXiv.2410.17452%26lt%3B%5C%2Fa%26gt%3B%20%282024%29.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%20%20%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22preprint%22%2C%22title%22%3A%22Generation%20of%20non-classical%20and%20entangled%20light%20states%20using%20intense%20laser-matter%20interactions%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Th%22%2C%22lastName%22%3A%22Lamprou%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22P.%22%2C%22lastName%22%3A%22Stammer%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22J.%22%2C%22lastName%22%3A%22Rivera-Dean%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22N.%22%2C%22lastName%22%3A%22Tsatrafyllis%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22M.%20F.%22%2C%22lastName%22%3A%22Ciappina%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22M.%22%2C%22lastName%22%3A%22Lewenstein%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22P.%22%2C%22lastName%22%3A%22Tzallas%22%7D%5D%2C%22abstractNote%22%3A%22Non-classical%20and%20entangled%20light%20states%20are%20of%20fundamental%20interest%20in%20quantum%20mechanics%20and%20they%20are%20a%20powerful%20tool%20for%20the%20emergence%20of%20new%20quantum%20technologies.%20The%20development%20of%20methods%20that%20can%20lead%20to%20the%20generation%20of%20such%20light%20states%20is%20therefore%20of%20high%20importance.%20Recently%2C%20we%20have%20demonstrated%20that%20intense%20laser-matter%20interactions%20can%20serve%20towards%20this%20direction.%20Specifically%2C%20we%20have%20shown%20how%20the%20use%20of%20fully%20quantized%20approaches%20in%20intense%20laser-matter%20interactions%20and%20the%20process%20of%20high%20harmonic%20generation%2C%20can%20lead%20to%20the%20generation%20high%20photon-number%20non-classical%20%28optical%20Schr%5C%5C%26quot%3B%7Bo%7Ddinger%26%23039%3Bs%20%26quot%3Bcat%26quot%3B%20or%20squeezed%29%20and%20entangled%20states%20from%20the%20far-infrared%20%28IR%29%20to%20the%20extreme-ultraviolet%20%28XUV%29.%20Here%2C%20after%20a%20brief%20introduction%20on%20the%20fundamentals%2C%20we%20summarize%20the%20operation%20principles%20of%20these%20approaches%20and%20we%20discuss%20the%20future%20directions%20of%20non-classical%20light%20engineering%20using%20strong%20laser%20fields%2C%20and%20the%20potential%20applications%20in%20ultrafast%20and%20quantum%20information%20science.%20Our%20findings%20open%20the%20way%20to%20a%20novel%20quantum%20nonlinear%20spectroscopy%20method%2C%20based%20on%20the%20interplay%20between%20the%20quantum%20properties%20of%20light%20with%20that%20of%20quantum%20matter.%22%2C%22genre%22%3A%22%22%2C%22repository%22%3A%22arXiv%22%2C%22archiveID%22%3A%22arXiv%3A2410.17452%22%2C%22date%22%3A%222024-10-22%22%2C%22DOI%22%3A%2210.48550%5C%2FarXiv.2410.17452%22%2C%22citationKey%22%3A%22%22%2C%22url%22%3A%22http%3A%5C%2F%5C%2Farxiv.org%5C%2Fabs%5C%2F2410.17452%22%2C%22language%22%3A%22%22%2C%22collections%22%3A%5B%22CULCKNQ7%22%5D%2C%22dateModified%22%3A%222024-11-04T10%3A09%3A26Z%22%7D%7D%2C%7B%22key%22%3A%22DXGY5NUS%22%2C%22library%22%3A%7B%22id%22%3A2439339%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Stammer%22%2C%22parsedDate%22%3A%222024-10-20%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%20style%3D%26quot%3Bclear%3A%20left%3B%20%26quot%3B%26gt%3B%5Cn%20%20%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-left-margin%26quot%3B%20style%3D%26quot%3Bfloat%3A%20left%3B%20padding-right%3A%200.5em%3B%20text-align%3A%20right%3B%20width%3A%201em%3B%26quot%3B%26gt%3B1.%26lt%3B%5C%2Fdiv%26gt%3B%26lt%3Bdiv%20class%3D%26quot%3Bcsl-right-inline%26quot%3B%20style%3D%26quot%3Bmargin%3A%200%20.4em%200%201.5em%3B%26quot%3B%26gt%3BStammer%2C%20P.%20Energy%20conservation%20in%20quantum%20optical%20high%20harmonic%20generation.%20Preprint%20at%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.48550%5C%2FarXiv.2410.15503%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.48550%5C%2FarXiv.2410.15503%26lt%3B%5C%2Fa%26gt%3B%20%282024%29.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%20%20%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22preprint%22%2C%22title%22%3A%22Energy%20conservation%20in%20quantum%20optical%20high%20harmonic%20generation%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Philipp%22%2C%22lastName%22%3A%22Stammer%22%7D%5D%2C%22abstractNote%22%3A%22The%20use%20of%20energy%20conservation%20arguments%20is%20ubiquitous%20in%20understanding%20the%20process%20of%20high%20harmonic%20generation%2C%20yet%20a%20complete%20quantum%20optical%20description%20of%20photon%20exchange%20remained%20elusive.%20Here%2C%20we%20solve%20this%20gap%20in%20description%20by%20introducing%20the%20energy%20conserving%20subspace%20in%20high%20harmonic%20generation%20in%20which%20many%20photons%20of%20the%20driving%20field%20are%20absorbed%20to%20generate%20a%20single%20photon%20of%20higher%20energy.%20The%20presented%20solution%20to%20energy%20conservation%20in%20quantum%20optical%20high%20harmonic%20generation%20naturally%20results%20in%20highly%20entangled%20states%20of%20light%20with%20non-classical%20properties%20in%20their%20marginals.%20This%20further%20allows%20to%20explain%20recent%20experimental%20results%20for%20quantum%20state%20engineering%2C%20for%20which%20we%20provide%20analytical%20bounds%20on%20the%20fidelity%20with%20a%20high%20photon%20number%20optical%20cat%20state.%22%2C%22genre%22%3A%22%22%2C%22repository%22%3A%22arXiv%22%2C%22archiveID%22%3A%22arXiv%3A2410.15503%22%2C%22date%22%3A%222024-10-20%22%2C%22DOI%22%3A%2210.48550%5C%2FarXiv.2410.15503%22%2C%22citationKey%22%3A%22%22%2C%22url%22%3A%22http%3A%5C%2F%5C%2Farxiv.org%5C%2Fabs%5C%2F2410.15503%22%2C%22language%22%3A%22%22%2C%22collections%22%3A%5B%22CULCKNQ7%22%5D%2C%22dateModified%22%3A%222024-11-04T10%3A09%3A26Z%22%7D%7D%2C%7B%22key%22%3A%22PUXTEWVC%22%2C%22library%22%3A%7B%22id%22%3A2439339%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Rivera-Dean%20et%20al.%22%2C%22parsedDate%22%3A%222024-09-03%22%2C%22numChildren%22%3A1%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%20style%3D%26quot%3Bclear%3A%20left%3B%20%26quot%3B%26gt%3B%5Cn%20%20%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-left-margin%26quot%3B%20style%3D%26quot%3Bfloat%3A%20left%3B%20padding-right%3A%200.5em%3B%20text-align%3A%20right%3B%20width%3A%201em%3B%26quot%3B%26gt%3B1.%26lt%3B%5C%2Fdiv%26gt%3B%26lt%3Bdiv%20class%3D%26quot%3Bcsl-right-inline%26quot%3B%20style%3D%26quot%3Bmargin%3A%200%20.4em%200%201.5em%3B%26quot%3B%26gt%3BRivera-Dean%2C%20J.%20%26lt%3Bi%26gt%3Bet%20al.%26lt%3B%5C%2Fi%26gt%3B%20Quantum%20state%20engineering%20of%20light%20using%20intensity%20measurements%20and%20post-selection.%20Preprint%20at%20%26lt%3Ba%20class%3D%26%23039%3Bzp-DOIURL%26%23039%3B%20href%3D%26%23039%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.48550%5C%2FarXiv.2409.02016%26%23039%3B%26gt%3Bhttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.48550%5C%2FarXiv.2409.02016%26lt%3B%5C%2Fa%26gt%3B%20%282024%29.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%20%20%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22preprint%22%2C%22title%22%3A%22Quantum%20state%20engineering%20of%20light%20using%20intensity%20measurements%20and%20post-selection%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22J.%22%2C%22lastName%22%3A%22Rivera-Dean%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Th%22%2C%22lastName%22%3A%22Lamprou%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22E.%22%2C%22lastName%22%3A%22Pisanty%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22M.%20F.%22%2C%22lastName%22%3A%22Ciappina%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22P.%22%2C%22lastName%22%3A%22Tzallas%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22M.%22%2C%22lastName%22%3A%22Lewenstein%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22P.%22%2C%22lastName%22%3A%22Stammer%22%7D%5D%2C%22abstractNote%22%3A%22Quantum%20state%20engineering%20of%20light%20is%20of%20great%20interest%20for%20quantum%20technologies%2C%20particularly%20generating%20non-classical%20states%20of%20light%2C%20and%20is%20often%20studied%20through%20quantum%20conditioning%20approaches.%20Recently%2C%20we%20demonstrated%20that%20such%20approaches%20can%20be%20applied%20in%20intense%20laser-atom%20interactions%20to%20generate%20optical%20%26quot%3Bcat%26quot%3B%20states%20by%20using%20intensity%20measurements%20and%20classical%20post-selection%20of%20the%20measurement%20data.%20Post-processing%20of%20the%20sampled%20data%20set%20allows%20to%20select%20specific%20events%20corresponding%20to%20measurement%20statistics%20as%20if%20there%20would%20be%20non-classical%20states%20of%20light%20leading%20to%20these%20measurement%20outcomes.%20However%2C%20to%20fully%20realize%20the%20potential%20of%20this%20method%20for%20quantum%20state%20engineering%2C%20it%20is%20crucial%20to%20thoroughly%20investigate%20the%20role%20of%20the%20involved%20measurements%20and%20the%20specifications%20of%20the%20post-selection%20scheme.%20We%20illustrate%20this%20by%20analyzing%20post-selection%20schemes%20recently%20developed%20for%20the%20process%20of%20high%20harmonic%20generation%2C%20which%20enables%20generating%20optical%20cat%20states%20bright%20enough%20to%20induce%20non-linear%20phenomena.%20These%20findings%20provide%20significant%20guidance%20for%20quantum%20light%20engineering%20and%20the%20generation%20of%20high-quality%2C%20intense%20optical%20cat%20states%20for%20applications%20in%20non-linear%20optics%20and%20quantum%20information%20science.%22%2C%22genre%22%3A%22%22%2C%22repository%22%3A%22arXiv%22%2C%22archiveID%22%3A%22arXiv%3A2409.02016%22%2C%22date%22%3A%222024-09-03%22%2C%22DOI%22%3A%2210.48550%5C%2FarXiv.2409.02016%22%2C%22citationKey%22%3A%22%22%2C%22url%22%3A%22http%3A%5C%2F%5C%2Farxiv.org%5C%2Fabs%5C%2F2409.02016%22%2C%22language%22%3A%22%22%2C%22collections%22%3A%5B%22CULCKNQ7%22%5D%2C%22dateModified%22%3A%222024-11-04T10%3A09%3A26Z%22%7D%7D%2C%7B%22key%22%3A%22VV5SBF8C%22%2C%22library%22%3A%7B%22id%22%3A2439339%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Stammer%20et%20al.%22%2C%22parsedDate%22%3A%222024-09%22%2C%22numChildren%22%3A0%7D%2C%22bib%22%3A%22%26lt%3Bdiv%20class%3D%26quot%3Bcsl-bib-body%26quot%3B%20style%3D%26quot%3Bline-height%3A%202%3B%20%26quot%3B%26gt%3B%5Cn%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-entry%26quot%3B%20style%3D%26quot%3Bclear%3A%20left%3B%20%26quot%3B%26gt%3B%5Cn%20%20%20%20%26lt%3Bdiv%20class%3D%26quot%3Bcsl-left-margin%26quot%3B%20style%3D%26quot%3Bfloat%3A%20left%3B%20padding-right%3A%200.5em%3B%20text-align%3A%20right%3B%20width%3A%201em%3B%26quot%3B%26gt%3B1.%26lt%3B%5C%2Fdiv%26gt%3B%26lt%3Bdiv%20class%3D%26quot%3Bcsl-right-inline%26quot%3B%20style%3D%26quot%3Bmargin%3A%200%20.4em%200%201.5em%3B%26quot%3B%26gt%3BStammer%2C%20P.%2C%20Martos%2C%20T.%20F.%2C%20Lewenstein%2C%20M.%20%26amp%3B%20Rajchel-Mieldzio%26%23x107%3B%2C%20G.%20Metrological%20robustness%20of%20high%20photon%20number%20optical%20cat%20states.%20%26lt%3Bi%26gt%3BQuantum%20Sci.%20Technol.%26lt%3B%5C%2Fi%26gt%3B%20%26lt%3Bb%26gt%3B9%26lt%3B%5C%2Fb%26gt%3B%2C%20045047%20%282024%29.%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%20%20%26lt%3B%5C%2Fdiv%26gt%3B%5Cn%26lt%3B%5C%2Fdiv%26gt%3B%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Metrological%20robustness%20of%20high%20photon%20number%20optical%20cat%20states%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Philipp%22%2C%22lastName%22%3A%22Stammer%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Tom%5Cu00e1s%20Fern%5Cu00e1ndez%22%2C%22lastName%22%3A%22Martos%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Maciej%22%2C%22lastName%22%3A%22Lewenstein%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Grzegorz%22%2C%22lastName%22%3A%22Rajchel-Mieldzio%5Cu0107%22%7D%5D%2C%22abstractNote%22%3A%22In%20the%20domain%20of%20quantum%20metrology%2C%20cat%20states%20have%20demonstrated%20their%20utility%20despite%20their%20inherent%20fragility%20with%20respect%20to%20losses.%20Here%2C%20we%20introduce%20noise%20robust%20optical%20cat%20states%20which%20exhibit%20a%20metrological%20robustness%20for%20phase%20estimation%20in%20the%20regime%20of%20high%20photon%20numbers.%20These%20cat%20states%20are%20obtained%20from%20the%20intense%20laser%20driven%20process%20of%20high%20harmonic%20generation%20%28HHG%29%2C%20and%20show%20a%20resilience%20against%20photon%20losses.%20Focusing%20on%20a%20realistic%20scenario%20including%20experimental%20imperfections%20we%20opt%20for%20the%20case%20in%20which%20we%20can%20maximize%20the%20lower%20bound%20of%20the%20quantum%20Fisher%20information%20%28QFI%29%20instead%20of%20analyzing%20the%20best%20case%20scenario.%20We%20show%20that%20the%20decrease%20of%20the%20QFI%20in%20the%20lossy%20case%20is%20suppressed%20for%20the%20HHG-cat%20state%20compared%20to%20the%20even%20and%20odd%20counterparts.%20In%20the%20regime%20of%20small%20losses%20of%20just%20a%20single%20photon%2C%20the%20HHG-cat%20state%20remains%20almost%20pure%20while%20the%20even%5C%2Fodd%20cat%20state%20counterparts%20rapidly%20decohere%20to%20the%20maximally%20mixed%20state.%20More%20importantly%2C%20this%20translates%20to%20a%20significantly%20enhanced%20robustness%20for%20the%20HHG-cat%20against%20photon%20loss%2C%20demonstrating%20that%20high%20photon%20number%20optical%20cat%20states%20can%20indeed%20be%20used%20for%20metrological%20applications%20even%20in%20the%20presence%20of%20losses.%22%2C%22date%22%3A%222024-09%22%2C%22section%22%3A%22%22%2C%22partNumber%22%3A%22%22%2C%22partTitle%22%3A%22%22%2C%22DOI%22%3A%2210.1088%5C%2F2058-9565%5C%2Fad7881%22%2C%22citationKey%22%3A%22%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fdx.doi.org%5C%2F10.1088%5C%2F2058-9565%5C%2Fad7881%22%2C%22PMID%22%3A%22%22%2C%22PMCID%22%3A%22%22%2C%22ISSN%22%3A%222058-9565%22%2C%22language%22%3A%22en%22%2C%22collections%22%3A%5B%22CULCKNQ7%22%5D%2C%22dateModified%22%3A%222024-11-04T10%3A09%3A26Z%22%7D%7D%5D%7D
1.
Theidel, D. et al. Observation of a Multimode Displaced Squeezed State in High-Harmonic Generation. Preprint at https://doi.org/10.48550/arXiv.2411.02311 (2024).
1.
Lamprou, T. et al. Generation of non-classical and entangled light states using intense laser-matter interactions. Preprint at https://doi.org/10.48550/arXiv.2410.17452 (2024).
1.
Stammer, P. Energy conservation in quantum optical high harmonic generation. Preprint at https://doi.org/10.48550/arXiv.2410.15503 (2024).
1.
Rivera-Dean, J. et al. Quantum state engineering of light using intensity measurements and post-selection. Preprint at https://doi.org/10.48550/arXiv.2409.02016 (2024).
1.
Stammer, P., Martos, T. F., Lewenstein, M. & Rajchel-Mieldzioć, G. Metrological robustness of high photon number optical cat states. Quantum Sci. Technol. 9, 045047 (2024).
