There are still new physics to discover in circuit-QED-like systems. We investigate coupling an encoded spin qubit to a superconductor resonator via qubit energy level curvature versus gate voltage [1].This approach enables quantum non-demolition readout with strength of tens to hundred MHz all while the qubit stays …

Quantum computing has been in the news a lot lately. Conjectured in the ‘80s, with seminal motivating algorithmic and error correction discoveries in the 90s, the physics behind a quantum computer—qubit technology—has progressed steadily over the last two decades. Small, research-scale quantum computers with 10s of qubits are …

After almost two-decades of sustained effort in making spin- based qubits, silicon still has great promise as the technology of choice for future quantum computers.After a brief update on the field, I will discuss our recent work proposing new qubit and coupling approaches for silicon quantum dots that attempt …

After almost two-decades of sustained effort in making spin-based qubits, silicon still has great promise as the technology of choice for future quantum computers. After a brief update on the field, I will discuss our recent work proposing new qubit and coupling approaches for silicon quantum dots that attempt to …

Career talk covering my experiences from graduate student to internal postdoc to seta to government.

iQuise student team talk, MIT, Boston, MA

Future quantum computers may utilize multiple types of encoded spin qubits each optimized for their role within the system, be it computation, communication, initialization, or readout. In this talk I will discuss a new encoded qubit, the so-called “always-on, exchange-only” (AEON) qubit, which offers a true sweet spot to charge …

I will talk about two of our recent proposals for quantum computers based on superconducting JJ circuits [1] and spins in semiconductors [2]: what motivated them, why they are worth pursuing experimentally, and directions for future research.

[1] Semiconductor-inspired design principles for superconducting quantum computing, Nature Communications 7, 11059 (2016 …

LPS & LPS Quantum: who and why we are. LPS Research Programs: building expertise and doing relevant research; creating a community and exploring the technology space. What’s next?: near term plans and perspectives.

ATNS Workshop, Lincoln Laboratory, Boston, MA

Information technology based on the fundamental nature of the universe, namely quantum physics, can in some cases dramatically outperform the best “classical” solution. In other words, a quantum computer will be important someday. But the challenges are still immense. Somewhat surprisingly, silicon may continue to be an exceptionally relevant material …

Although the properties of spin-based qubits are specified by the material system they reside in, it’s possible to modify those properties by encoding a qubit into multiple physical spins. Here we consider new operating regimes for encoded spin qubits and discuss their relevance to spin-based quantum computing and qubit-qubit …