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class="h pbm"> <h1 class="ph"> 量子飞跃：光与声纠缠的创新突破 <a href="https://blog.sciencenet.cn/blog.php?mod=recommend"><img src="./static/image/blog/recommendico.gif" width="22px" height="22px" /><font style="font-size:14px; color:#930;" face="宋体">精选</font></a> </h1> <p class="xg2"> <span class="xg1">已有 4971 次阅读</span> <span class="xg1">2024-11-18 19:04</span> <span class="pipe">|</span><span class="xg1">个人分类:<a href="https://blog.sciencenet.cn/home.php?mod=space&uid=212210&do=blog&classid=153092&view=me">新科技</a></span><span class="pipe">|</span><span class="xg1">系统分类:<a href="https://blog.sciencenet.cn/home.php?mod=space&do=blog&view=all&uid=212210&catid=2">海外观察</a></span> </p> </div> <div id="blog_article" class="d cl" ><p style="line-height: 2em;"><span style="font-size: 18px; font-family: 宋体,SimSun;">量子飞跃：光与声纠缠的创新突破</span></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: 宋体,SimSun;">诸平</span></p><p style="text-align:center"><a href="https://scitechdaily.com/images/Entangled-Laser-Light-Traveling-Sound-Wave-Integrated-Photonic-Waveguide.jpg" target="_self" target="_blank"><img src="http://image.sciencenet.cn/home/202411/18/185501bhx2lhl9ztzibl6l.jpg" title="" alt="Entangled-Laser-Light-Traveling-Sound-Wave-Integrated-Photonic-Waveguide.jpg" style="width: 435px; height: 387px;" height="387" width="435"/></a></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: times new roman;">Fog. 1 </span><a href="https://scitechdaily.com/quantum-leap-innovative-breakthrough-in-entangling-light-and-sound/" style="text-decoration: underline; font-size: 18px; font-family: times new roman;" target="_blank"><span style="font-size: 18px; font-family: times new roman;">Artist’s view of entangled laser light with a traveling sound wave in an integrated photonic waveguide. Credit: Alexandra Genes</span></a></p><p style="text-align:center"><a href="https://scitechdaily.com/images/Birgit-Stiller-Changlong-Zhu-Claudiu-Genes.jpg" target="_self" target="_blank"><img src="http://image.sciencenet.cn/home/202411/18/185552x58n8im5j8rgjia1.jpg" title="" alt="Birgit-Stiller-Changlong-Zhu-Claudiu-Genes-777x777.jpg" style="width: 473px; height: 438px;" height="438" width="473"/></a></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: times new roman;">Fig. 2 </span><a href="https://scitechdaily.com/quantum-leap-innovative-breakthrough-in-entangling-light-and-sound/" style="text-decoration: underline; font-size: 18px; font-family: times new roman;" target="_blank"><span style="font-size: 18px; font-family: times new roman;">The team in the laboratory: Birgit Stiller, Changlong Zhu and Claudiu Genes. Credit: Susanne Viezens </span></a></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: 宋体,SimSun;">据德国马克斯·普朗克光科学研究所</span><span style="font-size: 18px; font-family: times new roman;">（</span><a href="https://ror.org/020as7681" style="text-decoration: underline; font-size: 18px; font-family: times new roman;" target="_blank"><span style="font-size: 18px; font-family: times new roman;">Max Planck Institute for the Science of Light</span></a><span style="font-size: 18px; font-family: times new roman;"><span style="font-size: 18px; font-family: 宋体;">简称</span>MPL, Staudtstraße 2, D-91058 Erlangen, Germany<span style="font-size: 18px; font-family: 宋体;">）</span>2024<span style="font-size: 18px; font-family: 宋体;">年</span>11<span style="font-size: 18px; font-family: 宋体;">月</span>16<span style="font-size: 18px; font-family: 宋体;">日提供的消息，量子飞跃：光与声纠缠的创新突破（</span></span><a href="https://scitechdaily.com/quantum-leap-innovative-breakthrough-in-entangling-light-and-sound/" style="text-decoration: underline; font-size: 18px; font-family: times new roman;" target="_blank"><span style="font-size: 18px; font-family: times new roman;">Quantum Leap: Innovative Breakthrough in Entangling Light and Sound</span></a><span style="font-size: 18px; font-family: times new roman;">）。</span></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: times new roman;"><span style="font-size: 18px; font-family: 宋体;">马克斯</span>-<span style="font-size: 18px; font-family: 宋体;">普朗克研究所</span>(Max-Planck-Institute)<span style="font-size: 18px; font-family: 宋体;">的科学家们采用了一种新的量子纠缠方法，利用布里渊散射（</span></span><a href="https://www.rp-photonics.com/brillouin_scattering.html" style="text-decoration: underline; font-size: 18px; font-family: times new roman;" target="_blank"><span style="font-size: 18px; font-family: times new roman;">Brillouin scattering</span></a><span style="font-size: 18px; font-family: times new roman;"><span style="font-size: 18px; font-family: 宋体;">）将光子（</span>photons<span style="font-size: 18px; font-family: 宋体;">）与声子（</span>acoustic phonons<span style="font-size: 18px; font-family: 宋体;">）连接起来，提高了稳定性，并在更高的温度下工作。</span></span></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: 宋体,SimSun;">量子纠缠</span><span style="font-size: 18px; font-family: times new roman;">（</span><a href="https://www.scientificamerican.com/article/quantum-entanglement-isnt-all-that-spooky-after-all1/" style="text-decoration: underline; font-size: 18px; font-family: times new roman;" target="_blank"><span style="font-size: 18px; font-family: times new roman;">Quantum entanglement</span></a><span style="font-size: 18px; font-family: times new roman;"><span style="font-size: 18px; font-family: 宋体;">）对于包括安全量子通信和量子计算在内的许多尖端量子技术至关重要。马克斯</span>-<span style="font-size: 18px; font-family: 宋体;">普朗克光科学研究所（</span>MPL<span style="font-size: 18px; font-family: 宋体;">）的研究人员开发了一种有效的新方法，可以将光子与声子纠缠在一起。他们的方法克服了量子技术易受外部噪声影响的最大挑战之一。这项开创性的研究于</span>2024<span style="font-size: 18px; font-family: 宋体;">年</span>11<span style="font-size: 18px; font-family: 宋体;">月</span>13<span style="font-size: 18px; font-family: 宋体;">日已经在《物理评论快报》（</span></span><a href="https://doi.org/10.1103/PhysRevLett.133.203602" style="text-decoration: underline; font-size: 18px; font-family: times new roman;" target="_blank"><span style="font-size: 18px; font-family: times new roman;">Physical Review Letters</span></a><span style="font-size: 18px; font-family: times new roman;"><span style="font-size: 18px; font-family: 宋体;">）网站发表，为鲁棒量子系统（</span>robust quantum systems<span style="font-size: 18px; font-family: 宋体;">）开辟了新的可能性。原文详见：</span>Changlong Zhu, Claudiu Genes, Birgit Stiller. Optoacoustic Entanglement in a Continuous Brillouin-Active Solid State System. Physical Review Letters, 2024, 133: 203602. </span><a href="https://doi.org/10.1103/PhysRevLett.133.203602" style="text-decoration: underline; font-size: 18px; font-family: times new roman;" target="_blank"><span style="font-size: 18px; font-family: times new roman;">DOI: 10.1103/PhysRevLett.133.203602</span></a><span style="font-size: 18px; font-family: times new roman;">. Published 13 November 2024. </span><a href="https://doi.org/10.1103/PhysRevLett.133.203602" style="text-decoration: underline; font-size: 18px; font-family: times new roman;" target="_blank"><span style="font-size: 18px; font-family: times new roman;">https://doi.org/10.1103/PhysRevLett.133.203602</span></a></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: times new roman;"><span style="font-size: 18px; font-family: 宋体;">参与此项研究的除了来自德国</span>MPL<span style="font-size: 18px; font-family: 宋体;">的研究人员之外，还有来自德国弗里德里希</span>-<span style="font-size: 18px; font-family: 宋体;">亚历山大</span> <span style="font-size: 18px; font-family: 宋体;">埃尔朗根</span>-<span style="font-size: 18px; font-family: 宋体;">纽伦堡大学（</span></span><a href="https://ror.org/00f7hpc57" style="text-decoration: underline; font-size: 18px; font-family: times new roman;" target="_blank"><span style="font-size: 18px; font-family: times new roman;">Friedrich-Alexander-Universität Erlangen-Nürnberg</span></a><span style="font-size: 18px; font-family: times new roman;">, Staudtstraße 7, D-91058 Erlangen, Germany<span style="font-size: 18px; font-family: 宋体;">）的研究人员。</span></span></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: times new roman;"><strong><span style="font-size: 18px; font-family: 宋体;">探索光声纠缠（</span></strong><strong><span style="font-size: 18px; font-family: 宋体;"></span></strong><strong><a href="https://scitechdaily.com/quantum-leap-innovative-breakthrough-in-entangling-light-and-sound/" target="_blank">Exploring Optoacoustic Entanglement</a></strong><strong><span style="font-size: 18px; font-family: 宋体;">）</span></strong></span></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: 宋体,SimSun;">量子纠缠是一种现象，粒子变得如此相互联系，以至于一个粒子的状态会立即影响另一个粒子，而不管它们之间的距离有多远。这一特性对于实现安全数据传输和高维量子计算至关重要。光子作为光的粒子，由于其速度和可靠性，非常适合携带量子信息，并且通过非线性光学进行光子纠缠已经是一种成熟的技术。</span></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: times new roman;"><span style="font-size: 18px; font-family: 宋体;">然而，</span>MPL<span style="font-size: 18px; font-family: 宋体;">的科学家们现在通过实现光子和声子之间的纠缠，扩展了这一概念。利用布里渊散射，他们创造了一种高弹性的光声纠缠方法，可以在高温环境中工作。这一进步不仅拓宽了量子技术的范围，而且使其在集成到现实世界系统中更加实用。</span></span></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: times new roman;"><strong><span style="font-size: 18px; font-family: 宋体;">历史背景和技术影响（</span></strong><strong><span style="font-size: 18px; font-family: 宋体;"></span></strong><strong><a href="https://scitechdaily.com/quantum-leap-innovative-breakthrough-in-entangling-light-and-sound/" target="_blank">Historical Context and Technological Implications</a></strong><strong><span style="font-size: 18px; font-family: 宋体;">）</span></strong></span></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: times new roman;"><span style="font-size: 18px; font-family: 宋体;">爱因斯坦称之为幽灵般的超距作用（</span><a href="https://mpl.mpg.de/news-events/news-from-the-institute/news-detail/news-detail/news-detail" target="_self" target="_blank">“spooky action at a distance”</a><span style="font-size: 18px; font-family: 宋体;">）。历史上，纠缠在许多不同的层面上都令人着迷，因为它与我们对自然基本定律的理解密切相关。粒子之间的量子相关性即使相隔很远也能持续存在。在实际层面上，量子纠缠是许多新兴量子技术的核心。在光学领域，光子纠缠是保证量子通信方法或量子计算方案安全的基础。然而，光子是易挥发的。因此，人们正在为某些应用寻找可行的替代方案，例如量子存储器或量子中继器方案（</span><a href="https://mpl.mpg.de/news-events/news-from-the-institute/news-detail/news-detail/news-detail" target="_self" target="_blank">quantum repeater schemes</a><span style="font-size: 18px; font-family: 宋体;">）。其中一个替代方案是声学领域，其中量子存储在声波（</span>acoustic or sound waves<span style="font-size: 18px; font-family: 宋体;">）中。</span></span></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: times new roman;"><strong><span style="font-size: 18px; font-family: 宋体;">量子相互作用的实际进展（</span></strong><strong><span style="font-size: 18px; font-family: 宋体;"></span></strong><strong><a href="https://scitechdaily.com/quantum-leap-innovative-breakthrough-in-entangling-light-and-sound/" target="_blank">Practical Advancements in Quantum Interaction</a></strong><strong><span style="font-size: 18px; font-family: 宋体;">）</span></strong></span></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: times new roman;">MPL<span style="font-size: 18px; font-family: 宋体;">的科学家们现在指出了一种特别有效的方法，可以使光子与声子纠缠在一起：当两个量子沿着相同的光子结构运动时，声子的运动速度要慢得多。潜在的效应是被称为布里渊</span>-<span style="font-size: 18px; font-family: 宋体;">曼德尔施塔姆散射（</span></span><a href="https://www.nature.com/articles/s41566-021-00836-5" style="text-decoration: underline; font-size: 18px; font-family: times new roman;" target="_blank"><span style="font-size: 18px; font-family: times new roman;">Brillouin-Mandelstam scattering</span></a><span style="font-size: 18px; font-family: 宋体,SimSun;">）<span style="font-size: 18px; font-family: 宋体,SimSun;">的光学非线性效应。</span>它负责在根本不同的能量尺度上耦合量子。</span></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: times new roman;"><span style="font-size: 18px; font-family: 宋体;">在他们的研究中，科学家们表明，提出的纠缠方案可以在几十开尔文的温度下运行。这比标准方法所需温度要高得多，标准方法通常使用昂贵的设备，如稀释冰箱（</span><a href="https://mpl.mpg.de/news-events/news-from-the-institute/news-detail/news-detail/news-detail" target="_self" target="_blank">dilution fridges</a><span style="font-size: 18px; font-family: 宋体;">）。在光纤或光子集成芯片中实现这一概念的可能性，使得这种机制在现代量子技术中的应用特别有趣。</span></span></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: times new roman;"><span style="font-size: 18px; font-family: 宋体;">本研究得到了德国马普学会（</span><a href="https://doi.org/10.1103/PhysRevLett.133.203602" target="_self" target="_blank">Max-Planck-Society through the independent Max Planck Research Groups Scheme</a><span style="font-size: 18px; font-family: 宋体;">）和德国研究基金会</span>{<a href="https://doi.org/10.1103/PhysRevLett.133.203602" target="_self" target="_blank">Deutsche Forschungsgemeinschaft </a>(DFG, German Research Foundation)—Project-ID 429529648—TRR 306 QuCoLiMa (“Quantum Cooperativity of Light and Matter”)}<span style="font-size: 18px; font-family: 宋体;">的资助。</span></span></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: 宋体,SimSun;">上述介绍，仅供参考。欲了解更多信息，敬请注意浏览</span><a href="https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.133.203602" style="text-decoration: underline; font-size: 18px; font-family: 宋体,SimSun;" target="_blank"><span style="font-size: 18px; font-family: 宋体,SimSun;">原文</span></a><span style="font-size: 18px; font-family: 宋体,SimSun;">或者</span><a href="https://scitechdaily.com/quantum-leap-innovative-breakthrough-in-entangling-light-and-sound/" style="text-decoration: underline; font-size: 18px; font-family: 宋体,SimSun;" target="_blank"><span style="font-size: 18px; font-family: 宋体,SimSun;">相关报道</span></a><span style="font-size: 18px; font-family: 宋体,SimSun;">。</span></p><p style="line-height: 2em; text-align: center;"><a href="https://mpl.mpg.de/news-events/news-from-the-institute/news-detail/news-detail/news-detail?tx_news_pi1%5Baction%5D=detail&tx_news_pi1%5Bcontroller%5D=News&tx_news_pi1%5Bnews%5D=1463&cHash=229dbf33867ea1c42b8ac08432c3268e" style="text-decoration: underline; font-size: 18px; font-family: times new roman;" target="_blank"><span style="font-size: 18px; font-family: times new roman;">MPL scientists find a new way of entangling light and sound</span></a></p><p style="line-height: 2em;"><a href="https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.133.203602" style="text-decoration: underline; font-size: 18px; font-family: times new roman;" target="_blank"><span style="font-size: 18px; font-family: times new roman;">Abstract </span></a></p><p style="line-height: 2em;"><span style="font-size: 18px; font-family: times new roman;">Entanglement in hybrid quantum systems comprised of fundamentally different degrees of freedom, such as light and mechanics, is of interest for a wide range of applications in quantum technologies. Here, we propose to engineer bipartite entanglement between traveling acoustic phonons in a Brillouin active solid state system and the accompanying light wave. The effect is achieved by applying optical pump pulses to state-of-the-art waveguides, exciting a Brillouin Stokes process. This pulsed approach, in a system operating in a regime orthogonal to standard optomechanical setups, allows for the generation of entangled photon-phonon pairs, resilient to thermal fluctuations. We propose an experimental platform where readout of the optoacoustics entanglement is done by the simultaneous detection of Stokes and anti-Stokes photons in a two-pump configuration. The proposed mechanism presents an important feature in that it does not require initial preparation of the quantum ground state of the phonon mode.</span></p><p></p> <br /><br /> <label style="font-size:13px; color:#850f0f">转载本文请联系原作者获取授权，同时请注明本文来自诸平科学网博客。<br />链接地址：</label><a href="https://blog.sciencenet.cn/blog-212210-1460627.html" target="_blank" style="font-size:13px; color:#850f0f">https://blog.sciencenet.cn/blog-212210-1460627.html </a> <br /><br />上一篇：<a href='blog-212210-1460436.html' target='_black'>减肥突破：科学家发现抑制食欲的天然化合物</a><br />下一篇：<a href='blog-212210-1460763.html' target='_black'>日用品中常见的化学物质可能会破坏你的睡眠</a>  </div> <div id="click_div"><table cellpadding="0" cellspacing="0" class="atd"> <tr></tr> </table> <script type="text/javascript"> function errorhandle_clickhandle(message, values) { if(values['id']) { showCreditPrompt(); show_click(values['idtype'], values['id'], values['clickid']); } } </script> </div> <div class="o cl">   <div id="shareblog"></div>  <a href="https://blog.sciencenet.cn/home.php?mod=spacecp&ac=favorite&type=blog&id=1460627&spaceuid=212210&handlekey=favoritebloghk_1460627" id="a_favorite" onclick="showWindow(this.id, this.href, 'get', 0);" class="oshr ofav">收藏</a>  IP: 111.20.218.*<span class="pipe">|</span> <a href="https://blog.sciencenet.cn/home.php?mod=spacecp&ac=blog&blogid=1460627&op=edithot&handlekey=bloghothk_1460627" id="blog_hot_1460627" onclick="showWindow(this.id, this.href, 'get', 0);">热度</a><span class="pipe">|</span>  </div> </div> <div class="ct_vw cl">  <div> <div id="div_main_content" class="mbm">  <h4 class="bbs pbn"> <span><label>当前推荐数：</label><font color="#FF0000" id="recommendcount">4</font> <label style="margin-left:10px;" id="recommendtag">推荐人：</label> <span id="recommendbody"> <a href="https://blog.sciencenet.cn/home.php?mod=space&uid=437607" style="margin-right:5px; 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