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						<h1 itemprop="headline">CCQ Lunch Seminar</h1>
						
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							<p class="text--intro" itemprop="description">Speaker: Juan Sanchez-Baena: "Spin orbit coupling in quantum systems and dipole-dipole scattering"</p>
						
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									<h2 class="screenreader-only">Oplysninger om arrangementet</h2>

									
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												<h3 class="news-event__info__item__header text--label-header">Tidspunkt</h3>
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														Onsdag 27. januar 2021,
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														&nbsp;kl. 11:30 -  13:00
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													<p class="news-event__info__item__ical-link"><a href="/ccq/show/artikel/ccq-lunch-meeting-9?tx_news_pi1%5Bformat%5D=ical&amp;type=9819&amp;cHash=70f01565f920ec8cf81f9250a9d9f52b">Tilføj til kalender</a></p>
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													<h3 class="news-event__info__item__header text--label-header">Sted</h3>
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														<p>Via Zoom</p>
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									<p>Abstract:</p>
<p>We present a Quantum Monte Carlo approach to the computation of properties of the ground state of a many-body system featuring Spin Orbit Coupling (SOC). We brie y describe how the basic Diusion Monte Carlo (DMC) method must be modied in order to describe SOC systems. For the specic case of Raman SOC, which is of experimental relevance, we show that the increase of inter-atomic correlations signicantly modies the phase diagram of the system with respect to mean eld calculations. Specically, the region of a stripe phase with super uid properties is enhanced. Within the framework of the Bogoliubov-de Gennes theory, we study the role of quantum uctuations in the stabilization of a Raman SOC stripe system which is unstable at the mean eld level due to the presence of attractive inter-spin interactions. We report that quantum uctuations indeed stabilize the system, leading to either a gas or a liquid as a function of the parameters of the Hamiltonian. We also show that the nite, stabilized system admits droplet-like solutions which feature internal structure, thus mixing solid-like and liquid-like properties. Finally, we brie y comment on dipole-dipole scattering without SOC, and show two examples where the computation of the s-wave scattering length is relevant to link theoretical and experimental results.</p>
								
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