The development of experimental platforms that advance the field of nce and technology (QIST) comes with a unique set of advantages and challenges common to any emergent technology. Researchers at Stony Brook University, led by Dominik Schneble, Ph.D., report the formation of matter-wave polaritons in an optical lattice, an experimental discovery that enables studies of a central QIST paradigm through direct quantum simulation using ultracold atoms. The researchers project that their novel quasiparticles, which mimic strongly interacting photons in materials and devices but circumvent some of the inherent challenges, will benefit the further development of QIST platforms that are poised to transform computing and communication technology.HTML,BODY{height:100%;width:100%;margin:0;padding:0;}BODY{}#mys-overlay{height:100%;width:100%;overflow:hidden;position:absolute;top:0;left:0;box-sizing:border-box;pointer-events:none;z-index:1;border:1px solid #E5E5E5;}BODY A,BODY A:visited,BODY A:hover,BODY A:active{color:inherit;cursor:pointer;text-decoration:inherit;}[dir=rtl] 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50px;}.so {position: relative;z-index: 9110;overflow: hidden;display: inline-block;padding: 1px 5px;width: 96px;height: 50px;border: 1px solid #E0E0E0;background-color: #FFFFFF;cursor: pointer;}.so:hover,.so:active {background-color: #F5F5F5;}.so div {display: -webkit-flex;display: flex;-webkit-align-items: center;align-items: center;-webkit-justify-content: center;justify-content: center;width: 100%;height: 100%;}.so span {color: #4285F4;font-family: Arial, sans-serif;text-align: center;font-size: 12px;line-height: 14px;white-space: normal;}@media (min-height: 54px) {.sh.ss .so,.sv .so {box-shadow: 0px 0px 2px rgba(0,0,0,0.12), 0px 1px 3px rgba(0,0,0,0.26);border: none;}}.sv .so,.sh.ss .so {border-radius: 2px;}.sv .so {margin: 4px;}.sv.jt .so:first-child {margin-top: 8px;}.amp-fcp {display: inline-block;position: absolute;z-index: 9;top: 0;left: 0;width: 376px;height: 1000px;-webkit-transform: translateY(1000px);transform: translateY(1000px);}.amp-animate .amp-fcp {-webkit-animation: 1000ms step-end amp-fcp-anim;animation: 1000ms step-end amp-fcp-anim;}@-webkit-keyframes amp-fcp-anim {0% {-webkit-transform: translateY(0);transform: translateY(0);}100% {-webkit-transform: translateY(1000px);transform: translateY(1000px);}}@keyframes amp-fcp-anim {0% {-webkit-transform: translateY(0);transform: translateY(0);}100% {-webkit-transform: translateY(1000px);transform: translateY(1000px);}}body{visibility:hidden} ” id=”google_ads_iframe_1″ style=”position: absolute; border: 0px !important; margin: auto; padding: 0px !important; display: block; height: 300px; max-height: 100%; max-width: 100%; min-height: 0px; min-width: 0px; width: 376px; inset: 0px;”>The findings are detailed in a paper published in Nature Physics.The research sheds light on fundamental polariton properties and related many-body phenomena, and it opens up novel possibilities for studies of polaritonic quantum matter.An important challenge in work with photon-based QIST platforms is that while photons can be ideal carriers of quantum information they do not normally interact with each other. The absence of such interactions also inhibits the controlled exchange of quantum information between them. Scientists have found a way around this by coupling the photons to heavier excitations in materials, thus forming polaritons, chimera-like hybrids between light and matter. Collisions between these heavier quasiparticles then make it possible for the photons to effectively interact. This can enable the implementation of photon-based quantum gate operations and eventually of an entire QIST infrastructure.However, a major challenge is the limited lifetime of these photon-based polaritons due to their radiative coupling to the environment, which leads to uncontrolled spontaneous decay and decoherence.According to Schneble and colleagues, their published polariton research circumvents such limitations caused by spontaneous decay completely. The photon aspects of their polaritons are entirely carried by atomic matter waves, for which such unwanted decay processes do not exist. This feature opens access to parameter regimes that are not, or not yet, accessible in photon-based polaritonic systems.”The development of quantum mechanics has dominated the last century, and a ‘second quantum revolution’ toward the development of QIST and its applications is now well underway around the globe, including at corporations such as IBM, Google and Amazon,” says Schneble, a Professor in the Department of Physics and Astronomy in the College of Arts and Sciences. “Our work highlights some fundamental quantum mechanical effects that are of interest for emergent photonic quantum systems in QIST ranging from semiconductor nanophotonics to circuit quantum electrodynamics.”The Stony Brook researchers conducted their experiments with a platform featuring ultracold atoms in an optical lattice, an egg-crate-like potential landscape formed by standing waves of light. Using a dedicated vacuum apparatus featuring various lasers and control fields and operating at nanokelvin temperature, they implemented a scenario in which the atoms trapped in the lattice “dress” themselves with clouds of vacuum excitations made of fragile, evanescent matter waves.The team found that, as a result, the polaritonic particles become much more mobile. The researchers were able to directly probe their inner structure by gently shaking the lattice, thus accessing the contributions of the matter waves and the atomic lattice excitation. When left alone, the matter-wave polaritons hop through the lattice, interact with each other, and form stable phases of quasiparticle matter.”With our experiment we performed a quantum simulation of an exciton-polariton system in a novel regime,” explains Schneble. “The quest to perform such ‘analogue’ simulations, which in addition are ‘analog’ in the sense that the relevant parameters can be freely dialed in, by itself constitutes an important direction within QIST.”The Stony Brook research included graduate students Joonhyuk Kwon (currently a postdoc at Sandia National Laboratory), Youngshin Kim, and Alfonso Lanuza.More information: Joonhyuk Kwon et al, Formation of matter-wave polaritons in an optical lattice, Nature Physics (2022). DOI: 10.1038/s41567-022-01565-4Journal information: Nature Physics Provided by Stony Brook University Feedback to editorsRelatedEnhanced interactions through strong light-matter couplingDec 17, 2020Tailored single photons: Optical control of photons as the key to new technologiesApr 06, 2022Scientists get photons to interact with pairs of atoms for the first timeAug 26, 2021Boosting polaritonic nonlinearity with a mechanism to create polaron-polaritonsApr 24, 2020REPORTOptically generated quantum fluids of light reveal exotic matter-wave states in condensed matter physicsSep 30, 2021New microscopy technique for quantum simulationNov 30, 2021RecommendedLoad comments (0)Astronomers capture surprising changes in Neptune’s temperatures4 hours agoTrainee teachers made sharper assessments about learning difficulties after receiving feedback from AI5 hours agoFirst private mission reaches International Space StationApr 09, 2022Melting ice caps may not shut down ocean currentApr 09, 2022In a sea of magic angles, ‘twistons’ keep electrons flowing through three layers of grapheneApr 08, 2022Infrastructure inequality is a challenge to urban sustainabilityApr 08, 2022Cell-cell signaling of GI bacteria can unlock future infection preventionsApr 08, 2022Differences between the Moon’s near and far sides linked to colossal ancient impactApr 08, 2022First integrated laser on lithium niobate chipApr 08, 2022Dynamic rivers contributed to Amazon’s rich bird diversityApr 08, 2022Air pollution responsible for 180,000 excess deaths in tropical citiesApr 08, 2022GET IN TOUCHContact usOUR PRODUCTSTech XploreMedical XpressScience XOTHER PUBLICATIONSAndroid appiOS appRSS feedsEXTRASHelpFAQLEGALAboutTerms of usePrivacy policyScience X AccountSponsored AccountNewsletterArchive© Phys.org 2003 – 2022 powered by Science X Network