1<!DOCTYPE html> 2 3<html> 4 <head> 5 <meta charset="utf-8"> 6 <meta http-equiv="X-UA-Compatible" content="IE=edge"> 7 <meta name="viewport" content="width=device-width, initial-scale=1"> 8 <title>QFG @Otago - Research</title> 9 <meta name="description" content="Research"> 10 11 <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@algolia/algoliasearch-netlify-frontend@1/dist/algoliasearchNetlify.css" /> 12 13 14 15 <link rel="stylesheet" href="https://www.ashtonbradley.nz/css/main.css"> 16 17 <link rel="stylesheet" href="https://www.ashtonbradley.nz/css/academicons.min.css"> 18 19 20 <link rel="canonical" href="https://www.ashtonbradley.nz/research/"> 21 <link rel="shortcut icon" type="image/webp" href="/favicon.ico"> 22 23
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45<div class="navbar navbar-default navbar-fixed-top" role="navigation"> 46 <div class="container-fluid"> 47 <div class="navbar-header"> 48 <button type="button" class="navbar-toggle collapsed glyphicon glyphicon-menu-hamburger" data-toggle="collapse" data-target="#navbar-collapse-1" aria-expanded="false"> 49 <span class="sr-only">Toggle navigation</span> 50 51 </button> 52 <a class="navbar-brand smallcaps" href="https://www.ashtonbradley.nz/">Quantum Fluids Group at Otago</a> 53 </div> 54 <div class="collapse navbar-collapse" id="navbar-collapse-1"> 55 <ul class="nav navbar-nav navbar-right smallcaps"> 56 57 <li><a href="https://www.ashtonbradley.nz/">Home</a></li> 58 <li><a href="https://www.ashtonbradley.nz/research">Research</a></li> 59 <li><a href="https://www.ashtonbradley.nz/allnews">News</a></li> 60 <li><a href="https://www.ashtonbradley.nz/team">Team</a></li> 61 <li><a href="https://www.ashtonbradley.nz/openings">Job offers</a></li> 62 <li><a href="https://www.ashtonbradley.nz/publications">Publications</a></li> 63 <li><a href="https://www.ashtonbradley.nz/talks">Talks</a></li> 64 <li><a href="https://www.ashtonbradley.nz/theses">Theses</a></li> 65 <li><a href="https://www.ashtonbradley.nz/code">Code</a></li> 66 <li><div id="search" class="algo-search"></div></li> 67 <li> 68 <button id="darkModeToggle"> 69 <span id="darkModeIconContainer"> 70 <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20"> 71 <path fill="currentColor" d="M17.293 13.293A8 8 0 0 1 6.707 2.707a8.001 8.001 0 1 0 10.586 10.586"/></svg> 72 </svg> 73 </span> 74 </button> 75 </li> 76 </ul> 77 </div> 78 </div> 79</div> 80 81 82 83 84
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88<script type="text/javascript"> 89 algoliasearchNetlify({ 90 appId: 'UKFG0RW50U', 91 apiKey: 'fba1d4fb70e6258abf51de96fda83b04', 92 siteId: 'adf6a35d-89cc-457b-8626-3489d6b32b97', 93 branch: 'main', 94 selector: 'div#search', 95 detached: true, 96 debug: true, 97 placeholder: 'Search...', 98 theme: { 99 mark: 'var(--headings-color)', 100 background: 'var(--navbar-default-bg)', 101 selected: 'var(--dark-well-bg)', 102 text: 'var(--body-color)', 103 colorSourceIcon: '#d6d6e7', 104 } 105 }); 106</script>
106 107 108<style> 109 .aa-DetachedContainer--modal{ 110 top:100px 111 } 112 .aa-DetachedSearchButton{ 113 border: 0;} 114 .aa-List{ 115 margin-top:20px} 116 117 .aa-Item .aa-ItemTitle{ 118 font-weight: 500; 119 } 120 .aa-ItemContent mark{ 121 font-weight: 500; 122 padding: 0; 123 padding-right: 0.1em; 124 } 125</style> 126 127 128 <div class="container-fluid"> 129 <div class="row"> <h1 id="research">Research</h1> 130 131<p>We develop theory and computational methods for quantum fluids in ultracold atoms, light, and open many-body systems. Across these platforms, we ask how collective quantum behaviour emerges, how it transports energy and information, and how it is shaped by driving, dissipation, and measurement.</p> 132 133<p>Our work connects quantum field theory, quantum optics, stochastic methods, and numerical modelling, with close attention to current and future experiments.</p> 134 135 136 <section class="articles"> 137 138 139 140<article class="card-article"> 141 <div class="article-wrapper"> 142 <a href="/research/01-quantum-fluid-dynamics/" ><figure class="article-fig"> 143 <img src="/assets/images/research/turbulence.jpeg" alt="Quantum Fluid Dynamics" /> 144 </figure> 145 </a> 146 147 <div class="article-body"> 148 <h2>Quantum Fluid Dynamics</h2> 149 <p>Quantum fluids combine wave motion with topological defects such as quantized vortices. We study how energy moves through these systems, from phonons and vortex motion to turbulent cascades in Bose-Einstein condensates and quantum fluids of light.</p> 150 <a href="/research/01-quantum-fluid-dynamics/" class="read-more"> 151 Read more 152 <svg 153 xmlns="http://www.w3.org/2000/svg" 154 class="icon"
155 viewBox="0 0 20 20" 156 fill="currentColor" 157 > 158 <path 159 fill-rule="evenodd" 160 d="M12.293 5.293a1 1 0 011.414 0l4 4a1 1 0 010 1.414l-4 4a1 1 0 01-1.414-1.414L14.586 11H3a1 1 0 110-2h11.586l-2.293-2.293a1 1 0 010-1.414z" 161 clip-rule="evenodd" 162 /> 163 </svg> 164 </a> 165 </div> 166 </div> 167 168</article> 169 170 171 172 173<article class="card-article"> 174 <div class="article-wrapper"> 175 <a href="/research/02-open-quantum-systems/" ><figure class="article-fig"> 176 <img src="/assets/images/research/oqsys.jpeg" alt="Open Quantum Systems" /> 177 </figure> 178 </a> 179 180 <div class="article-body"> 181 <h2>Open Quantum Systems</h2> 182 <p>Real quantum fluids are never perfectly isolated. We study how thermal noise, dissipation, and reservoir coupling shape phase transitions, vortex decay, soliton dynamics, and the practical limits of superfluid behaviour.</p> 183 <a href="/research/02-open-quantum-systems/" class="read-more"> 184 Read more 185 <svg 186 xmlns="http://www.w3.org/2000/svg" 187 class="icon"
188 viewBox="0 0 20 20" 189 fill="currentColor" 190 > 191 <path 192 fill-rule="evenodd" 193 d="M12.293 5.293a1 1 0 011.414 0l4 4a1 1 0 010 1.414l-4 4a1 1 0 01-1.414-1.414L14.586 11H3a1 1 0 110-2h11.586l-2.293-2.293a1 1 0 010-1.414z" 194 clip-rule="evenodd" 195 /> 196 </svg> 197 </a> 198 </div> 199 </div> 200 201</article> 202 203 204 205 206<article class="card-article"> 207 <div class="article-wrapper"> 208 <a href="/research/03-quantum-optics/" ><figure class="article-fig"> 209 <img src="/assets/images/research/qoptics.jpeg" alt="Quantum Optics" /> 210 </figure> 211 </a> 212 213 <div class="article-body"> 214 <h2>Quantum Optics</h2> 215 <p>We study how controlled light-matter interactions generate correlations, squeezing, and entanglement. Using quantum phase-space methods, we connect optical and atomic platforms for many-body physics and quantum information.</p> 216 <a href="/research/03-quantum-optics/" class="read-more"> 217 Read more 218 <svg 219 xmlns="http://www.w3.org/2000/svg" 220 class="icon"
221 viewBox="0 0 20 20" 222 fill="currentColor" 223 > 224 <path 225 fill-rule="evenodd" 226 d="M12.293 5.293a1 1 0 011.414 0l4 4a1 1 0 010 1.414l-4 4a1 1 0 01-1.414-1.414L14.586 11H3a1 1 0 110-2h11.586l-2.293-2.293a1 1 0 010-1.414z" 227 clip-rule="evenodd" 228 /> 229 </svg> 230 </a> 231 </div> 232 </div> 233 234</article> 235 236 237 </section> 238 239</div> 240 </div> 241 242 <div id="footer" class="panel"> 243 <div class="panel-footer"> 244 <div class="container-fluid"> 245 <div class="row"> 246 247 <div class="col-sm-4"> 248 <strong> Contact: </strong><br /> 249 Department of Physics, Science III <br /> 250 University of Otago<br /> 251 Dunedin 9054<br /> 252 New Zealand 253 (<a href="https://maps.app.goo.gl/AKNRP6dSpe4GFBy38" 254 >Maps and direction</a 255 >) 256 </div> 257 258 <div class="col-sm-4"> 259 <strong>Funding: </strong><br /> 260 <ul class="no-bullet"> 261 <li> - Dodd-Walls Centre <a href="https://www.doddwalls.ac.nz"> (DWC)</a> 262 263 <li> - Marsden Fund <a href="https://www.royals
263ociety.org.nz/what-we-do/funds-and-opportunities/marsden/"> (Marsden)</a> 264 265 <li> - Rutherford Discovery Fellowship <a href="https://www.royalsociety.org.nz/what-we-do/funds-and-opportunities/rutherford-discovery-fellowships/rutherford-discovery-fellowship-recipients/search-rutherford-discovery-fellowship-awards/?Years=2010&SearchTerm=bradley&action_doFundSearch=Search"> (RDF)</a> 266 267 </ul> 268 </div> 269 270 271 272 <div class="col-sm-4"> 273 <strong>Licence: </strong><br> 274 275 2024 - Ashton Bradley <br /> 276 <a href="https://github.com/AshtonSBradley/quantumfluids">Open source </a> with MIT Licence <br /> 277 Made with <a href="https://jekyllrb.com">Jekyll</a><br> 278 <a href="https://www.ashtonbradley.nz/aboutwebsite.html" 279 >Copy 280 </a> 281 and modify it for your group 282 283 </div> 284 </div> 285 </div> 286 </div> 287 288</div> 289 290 291 292 293 294 </body> 295</html> 296
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