We are the Haeffner Lab at UC Berkeley. We trap ions to investigate various aspects of quantum physics and quantum information.
Berkeley, CA
Joined June 2017
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Qian Yu at #DAMOP22 presenting our progress toward a quantum computer with trapped electrons! Learn more at arxiv.org/abs/2112.04034 and doi.org/10.1103/PhysRevX.11.….
Kristian Barajas from UCLA and Neil Glikin (@QuantumGlikin) at #DAMOP22 presented a poster on IonSim.jl, a Julia framework for simulating the dynamics of trapped ions primarily developed by our own Joseph Broz. Check out ionsim.org to learn more!
.@ryanmshaffer is presenting a poster on efficient verification of quantum gates. Come by poster 148! #DAMOP22
Shuqi Xu presents at #DAMOP22 on progress toward producing a miniaturized 3D ion trap using 3D printing!
Nicole Greene and Elia Perego are presenting a poster on our implementation of a light shift gate with optical qubits at #DAMOP22. Stop by poster 78!
We're at #DAMOP22! Come check out our talks this week!
E09:2 Tuesday 2:42pm Neil Glikin @QuantumGlikin: Rotational decoherence of a trapped-ion planar quantum rotor
E06:3 Tuesday 2:54pm Nicole Greene: Progress towards high-fidelity quantum gates
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Nicole Greene presents at #DAMOP22 about our progress toward near-infrared light shift gates on optical qubits.
We're at #DAMOP22! Come check out our talks this week!
E09:2 Tuesday 2:42pm Neil Glikin @QuantumGlikin: Rotational decoherence of a trapped-ion planar quantum rotor
E06:3 Tuesday 2:54pm Nicole Greene: Progress towards high-fidelity quantum gates
(1/2)
Neil Glikin (@QuantumGlikin) kicks off the Trapped Ions session at #DAMOP22 with a deep dive into rotational decoherence of a trapped-ion quantum rotor.
We're at #DAMOP22! Come check out our talks this week!
E09:2 Tuesday 2:42pm Neil Glikin @QuantumGlikin: Rotational decoherence of a trapped-ion planar quantum rotor
E06:3 Tuesday 2:54pm Nicole Greene: Progress towards high-fidelity quantum gates
(1/2)
We're at #DAMOP22! Come check out our talks this week!
E09:2 Tuesday 2:42pm Neil Glikin @QuantumGlikin: Rotational decoherence of a trapped-ion planar quantum rotor
E06:3 Tuesday 2:54pm Nicole Greene: Progress towards high-fidelity quantum gates
(1/2)
At #DAMOP GPMFC Workshop, Hartmut explains why we can hope to get a quantum advantage in sensing from only a single qubit, and talks about a test of a causal nonlinear extension to quantum mechanics.
Berkeley ions retweeted
Definitely one of the coolest papers in the last several years from our friends at @Berkeley_ions.
A "tin-can telephone" connects two ions through a metal wire, offering a system for remote ion cooling
Letter: go.aps.org/3ryqzR5
Viewpoint: go.aps.org/3B3AYHm
Berkeley ions retweeted
Are trapped electrons feasible for quantum computers? @Berkeley_ions (with a @TylerSutherl hand) finds out! 🧐
arxiv.org/abs/2112.04034
Berkeley ions retweeted
In our second Review, Kenneth Brown (@kenbrownquantum), John Chiaverini, Jeremy Sage & Hartmut Häffner discuss materials opportunities to improve trapped-ion #qubits: go.nature.com/2PyprvT @MITQuanta @Berkeley_ions
Berkeley ions retweeted
Our paper on using trapped electrons as charged particle detectors is on the @PhysRevLett front page :) Details here: journals.aps.org/prl/abstrac…
This slaps
Okay, who did this? 😆 @Liv_Lanes
Brb tuning in to some chill Qubit vibes on a Monday ⚛️🎧😌
youtu.be/sS8XWhP23so
Berkeley ions retweeted
I've spent the last week non-stop thinking about this awesome experiment from @Berkeley_ions.
In it, they couple the motion of two ions by using a floating electrode to mediate the charge.
This could allow for remote cooling and even gates!
So cool😍
arxiv.org/abs/2107.00851
Berkeley ions retweeted
Really excited to see this results from @Berkeley_ions on coupling two ion traps with a wire on the arxiv: arxiv.org/abs/2107.00851 These experiment started in 2007 @iqoqi, talk about perseverance ⏲️
Berkeley ions retweeted
Ever seen two ions rotating around each other? Now you have!
From the archives: Tired of controlling the quantum vibrational motion of Paul-trapped ion strings? Try quantum *rotational* motion!
journals.aps.org/prl/abstrac…
ft. @QuantumGlikin, @ucr_amo