FacebookTwitterYouTube RSS Feed

Quantum Information

Content About: Quantum Information

Published: 12/12/2016 - 8:00am Type of Content: Article-Research Highlight

The Rey and Ye groups discovered the strange rules of quantum baseball earlier this year. But now, quantum baseball games happen faster, and players (dipolar particles) are no longer free to move or stand wherever they want. Players must not only be stronger to jump and catch the balls (photons), but also more organized. At the same time, they must be good spinners. And, only a small amount of...

Published: 08/30/2016 - 12:00pm Type of Content: News

Fellows Cindy Regal and Konrad Lehnert have won the 2016 Governor’s Award for High-Impact Research in Foundational Science and Technology, CO-LABS announced today. JILA Chair Dana Anderson submitted the nomination of their joint research on building, studying, and using devices that exploit the strange and powerful properties of quantum mechanics. The nomination was entitled, The JILA Quantum...

Published: 01/28/2016 - 7:52am Type of Content: Article-Research Highlight

The Rey and Ye groups are in the midst of an extended collaboration on using the Ye group’s strontium (Sr) lattice clock for studies of spin-orbit coupling in pancake-like layers of cold Sr atoms. Spin-orbit coupling means an atom’s motion is correlated with its spin. It occurs in everyday materials when negatively charged electrons move in response to electromagnetic fields inside a crystal....

Published: 11/30/2015 - 7:53am Type of Content: Article-Research Highlight

In the future, quantum microwave networks may handle quantum information transfer via optical fibers or microwave cables. The evolution of a quantum microwave network will rely on innovative microwave circuits currently being developed and characterized by the Lehnert group. Applications for this innovative technology could one day include quantum computing, converters that transform microwave...

Published: 11/02/2015 - 9:15am Type of Content: Article-Research Highlight

The Regal and Rey groups have come up with a novel way to generate and propagate quantum entanglement [1], a key feature required for quantum computing. Quantum computing requires that bits of information called qubits be moved from one location to another, be available to interact in prescribed ways, and then be isolated for storage or subsequent interactions. The group showed that single...

Published: 08/19/2015 - 9:00am Type of Content: Article-Research Highlight

Graduate student Brian Lester of the Regal group has taken an important step toward building larger, more complex systems from single-atom building blocks. His accomplishment opens the door to advances in neutral-atom quantum computing, investigations of the interplay of spin and motion as well as the synthesis of novel single molecules from different atoms.

What Lester did was to...

Published: 07/27/2015 - 9:04am Type of Content: News

Kevin Cox received an Outstanding Presentation Award at the July 15, 2015, NIST Boulder Laboratories Postdoctoral Poster Symposium. Cox was recognized for his presentation “17 dB of Spin Squeezing with QND Measurements.” Cox is a graduate student in the James Thompson group at JILA. He co-authored the poster with Graham Greve, Joshua Weiner, and Thompson.

The award citation read, “The...

Published: 02/27/2015 - 11:36am Type of Content: Article-Research Highlight

When the Rey theory group first modeled a quantum system at JILA, it investigated the interactions of strontium atoms in the Ye group’s strontium-lattice clock. The quantum behavior of these collective interactions was relatively simple to model. However, the group has now successfully tackled some more complicated systems, including the ultracold polar KRb molecule experiment run by the Jin...

Published: 10/14/2014 - 11:59am Type of Content: Article-Research Highlight

Dynamical phase transitions in the quantum world are wildly noisy and chaotic. They don’t look anything like the phase transitions we observe in our everyday world. In Colorado, we see phase transitions caused by temperature changes all the time: snow banks melting in the spring, water boiling on the stove, slick spots on the sidewalk after the first freeze. Quantum phase transitions happen,...

Published: 10/08/2014 - 9:04am Type of Content: News

Fellow Margaret Murnane has won a Moore Experimental Investigator in Quantum Materials Award from the Gordon and Betty Moore Foundation (Palo Alto, CA). The award is part of the foundation’s $90 million Emergent Phenomena in Quantum Systems Initiative. It is designed to facilitate scientific breakthroughs by giving Murnane and other awardees the opportunity to take risks, collaborate with...

Published: 03/19/2014 - 2:27pm Type of Content: Article-Research Highlight

The Regal-Lehnert collaboration has just taken a significant step towards the goal of one day building a quantum information network. Large-scale fiber-optic networks capable of preserving fragile quantum states (which encode information) will be necessary to realize the benefits of superfast quantum computing. Such networks will require new technology to reversibly convert low-frequency...

Published: 02/20/2014 - 12:05pm Type of Content: News

Cindy Regal has been selected to receive a 2014 Cottrell Scholars Award from the Research Corporation for Science and Advancement. The Cottrell Scholar Awards are given to early career faculty members who excel at both research and teaching. The awards target scholarship designed to improve undergraduate science education at research universities in the United States.

Published: 01/22/2014 - 11:16am Type of Content: Article-Research Highlight

JILA and NIST labs are well on the way to creating astonishingly accurate optical atomic clocks based on the neutral atoms strontium (Sr) and ytterbium (Yb). The new technologies are already capable of the most meticulous timekeeping in human history.

JILA Fellow Jun Ye’s group has developed an optical atomic clock that uses neutral Sr atoms held in an optical lattice (i.e., crystal of...

Published: 10/04/2013 - 7:39am Type of Content: Article-Research Highlight

Tauno Palomaki and his colleagues in the Lehnert group have just gone where no one has gone before: They’ve entangled the quantum motion of a vibrating drum with the quantum state of a moving electrical pulse. What’s more, they figured out how to store half of this novel entangled state in the drum (which is tiny compared to a musical drum, but huge compared to the atoms or molecules normally...

Published: 09/25/2013 - 8:06am Type of Content: News

Theorist Ana Maria Rey has received a 2014 MacArthur Fellowship, or “Genius Grant.” She is the third JILA Fellow to win a genius grant, joining Deborah Jin (2003) and Margaret Murnane (2000). The MacArthur Fellowship includes a $625,000 unrestricted grant. Rey was cited for being an “atomic Physicist advancing our ability to simulate, manipulate, and control novel states of matter through...

Published: 08/08/2013 - 2:08pm Type of Content: Article-Research Highlight

Because quantum mechanics is crucial to understanding the behavior of everything in the Universe, one can understand key elements of the behavior of a neutron star by investigating the behavior of an atomic system in the laboratory. This is the promise of the new quantum simulator in the Ye labs. It is a fully controllable quantum system that is being used as a laboratory to study the behavior...

Published: 03/21/2013 - 9:48am Type of Content: Article-Research Highlight

The Lehnert group has come up with a clever way to transport and store quantum information. Research associate Tauno Palomaki, graduate student Jennifer Harlow, NIST colleagues Jon Teufel and Ray Simmonds, and Fellow Konrad Lehnert have encoded a quantum state onto an electric circuit and figured out how to transport the information from the circuit into a tiny mechanical drum, where is stored...

Published: 02/27/2013 - 10:05am Type of Content: Article-Research Highlight

Researchers in the Regal group have gotten so good at using laser light to track the exact position of a tiny drum that they have been able to observe a limit imposed by the laws of quantum mechanics. In a recent experiment, research associate Tom Purdy, graduate student Robert Peterson, and Fellow Cindy Regal were able to measure the motion of the drum by sending light back and forth through...

Published: 08/31/2012 - 3:14pm Type of Content: Article-Research Highlight

News Flash!  The Rey group has discovered another good reason for using alkaline-earth atoms, such as strontium (Sr) or Ytterbium (Yb), in experimental quantum simulators. Quantum simulators are systems that mimic interesting materials or mathematical models in a very controlled way. The new reason for using alkaline earth atoms in such systems comes from the fact that their nuclei come...

Published: 02/22/2012 - 5:00pm Type of Content: Article-Research Highlight

Fellows Konrad Lehnert and Cindy Regal are collaborating on an ambitious undertaking to explore the quantum behavior of tiny mechanical systems that are large enough to be visible to the naked eye (as opposed to systems exhibiting quantum behavior that are no bigger than a few tens of atoms). At the same time, they have been looking for ways to prolong vibrations in mechanical objects such as...

Published: 03/20/2011 - 6:00pm Type of Content: Article-Research Highlight

In 2008, the Ye and Jin groups succeeded in making ultracold potassium-rubidium (KRb) molecules in their ground state (See “Redefining Chemistry at JILA” in the Spring 2010 issue of JILA Light & Matter). Their next goal was to figure out how to precisely control chemical reactions of these ultracold polar molecules by manipulating the quantum states of the reactants. But first the...

Published: 01/13/2011 - 5:00pm Type of Content: Article-Research Highlight

“Nature is built quantum mechanically,” says Fellow Jun Ye, who wants to understand the connections between atoms and molecules in complex systems such as liquids and solids (aka condensed matter). He says that the whole Universe is made of countless interacting particles, and it would be impossible to figure out the myriad connections between them one particle at a time, either theoretically...

Published: 04/08/2009 - 6:00pm Type of Content: Article-Research Highlight

Fellows Ana Maria Rey and Jun Ye have come up with a clever idea that should make it much easier to design a quantum computer based on alkaline-earth atoms such as strontium (Sr). In this work, they collaborated with former research associate Marty Boyd, former JILA Fellow Peter Zoller (University of Innsbruck), and colleagues from Harvard University and the University of Innsbruck.

To...

Published: 05/13/2013 - 4:08pm Type of Content: Biblio
Published: 06/28/2016 - 2:16pm Type of Content: Biblio
Published: 02/05/2014 - 7:45am Type of Content: Biblio
Published: 10/19/2012 - 9:48am Type of Content: People - Faculty & Research Groups
Published: 05/08/2013 - 3:36pm Type of Content: Biblio
Published: 01/25/2016 - 8:35am Type of Content: Biblio
Published: 01/17/2014 - 8:31am Type of Content: Biblio
Published: 10/19/2012 - 9:42am Type of Content: People - Faculty & Research Groups
Published: 03/18/2013 - 1:59pm Type of Content: Biblio
Published: 11/10/2015 - 1:52pm Type of Content: Biblio
Published: 01/13/2014 - 1:48pm Type of Content: Biblio
Published: 10/18/2012 - 2:42pm Type of Content: People - Faculty & Research Groups
Published: 11/02/2015 - 9:09am Type of Content: Biblio
Published: 09/26/2013 - 9:59am Type of Content: Biblio
Published: 07/20/2015 - 2:34pm Type of Content: Biblio
Published: 06/10/2015 - 2:25pm Type of Content: Biblio
Published: 06/12/2014 - 10:49am Type of Content: Research Areas
Observing the Heisenberg Uncertainty Principle in the Laboratory

The Cindy Regal group is so skillful at using laser light to track the position of a tiny drum that researchers have been able to observe a limit imposed by the Heisenberg Uncertainty Principle. In one experiment, the researchers measured the motion of the drum by sending light back and forth through it many times. During this...

Published: 08/08/2013 - 2:00pm Type of Content: Biblio
Published: 02/24/2015 - 2:47pm Type of Content: Book Chapters

Alice couldn’t wait to get back to Quantumland. She’d spent the better part of the past week helping Mother host three teas and two garden parties in honor of her newly engaged sister Mary. Alice thought planning a wedding was pretty boring compared to scoping out a strange, cold world filled with odd creatures like talking atoms (the tiniest particles of matter).

At last, she was able...

Published: 03/23/2015 - 4:00pm Type of Content: Biblio
Published: 03/04/2013 - 3:30pm Type of Content: Research Areas

 

JILA Researchers are exploring quantum simulation with two systems: The Sr-lattice optical atomic clock in the Ye labs and the KRb ultracold molecules in the Jin-Ye lab. Both simulators rely on JILA’s exquisite precision measurement capabilities.

The Sr-Lattice Clock Simulator

With a few technical modifications, the Jun Ye group’s Sr-lattice optical atomic clock has been...

Published: 08/14/2014 - 10:38am Type of Content: Book Chapters

Since the 1930s, descriptions of the behavior of atoms in the quantum world have been hidden inside complex Hamiltonians, mathematical symphonies of SU(N) symmetry (which also describe the subatomic zoo of quarks and leptons), and whispers of strange laws such as the Heisenburg Uncertainty Principle.  Naturally, virtually none of these quantum behaviors resemble anything we’re familiar...

Published: 08/21/2014 - 2:23pm Type of Content: Biblio
Published: 08/20/2012 - 4:50pm Type of Content: Research Areas

JILA scientists conduct innovative research in quantum information with a goal of better understanding the tiny, cold world where the laws of quantum mechanics apply. This research encompasses the exciting new research areas of new quantum technologies, quantum simulation, and quantum computing. Research in new quantum technologies features investigations into hybrid quantum systems...

Published: 11/15/2016 - 10:36am Type of Content: Biblio
Published: 02/24/2014 - 7:35am Type of Content: Biblio
Ye
Published: 10/19/2012 - 9:58am Type of Content: People - Faculty & Research Groups
Published: 05/08/2013 - 4:07pm Type of Content: Biblio
Published: 01/22/2014 - 11:11am Type of Content: Biblio
Rey
Published: 10/19/2012 - 9:45am Type of Content: People - Faculty & Research Groups
Published: 03/18/2013 - 1:59pm Type of Content: Biblio
Published: 12/29/2015 - 3:18pm Type of Content: Biblio
Published: 01/17/2014 - 8:27am Type of Content: Biblio
Published: 10/18/2012 - 3:03pm Type of Content: People - Faculty & Research Groups
Published: 10/04/2013 - 7:33am Type of Content: Biblio
Published: 07/20/2015 - 3:19pm Type of Content: Biblio
Published: 09/11/2013 - 12:54pm Type of Content: Biblio
Published: 06/29/2015 - 3:55pm Type of Content: Biblio
Published: 08/15/2013 - 3:00pm Type of Content: Biblio
Published: 03/04/2013 - 3:36pm Type of Content: Research Areas
Novel Entanglement States Simultaneous entanglement of thousands of atoms

The Rey group has discovered that when reactive fermions are at "warm" micro-Kelvin temperatures, entanglement evolves naturally. When temperatures are low enough for fermions to collide and react in pairs, atoms or molecules that don't get knocked out of the experiment will be left entangled because they lose their...

Published: 06/21/2013 - 1:19pm Type of Content: Biblio
Published: 08/14/2014 - 11:00am Type of Content: Book Chapters

On a bright, sunny day in Oxford, England, 10-year old Alice Dirac was a bit bored visiting her great, great, great grandmother Alice Liddell’s childhood home. She picked up a dusty old book about her namesake’s Adventures in Wonderland and soon nodded off.

The next thing she knew, Alice was awake outside the manor house watching a white rabbit disappear down a rather large rabbit hole...

Published: 02/24/2015 - 10:07am Type of Content: Biblio
Published: 03/04/2013 - 3:27pm Type of Content: Research Areas

 

Hybrid Quantum Systems

The laws of quantum mechanics tell us that a physical object, such as an atom or an electron, can simultaneously be in two distinct places when it is in a state known as a superposition. However, superpositions are in conflict with our everyday experience of how the world works.

This situation raises an interesting question: What is the...

Published: 06/07/2013 - 9:54am Type of Content: Biblio
Published: 11/30/2016 - 11:15am Type of Content: Biblio
Published: 03/23/2014 - 2:02pm Type of Content: Biblio
Published: 01/27/2015 - 10:28am Type of Content: People - Faculty & Research Groups