585 citations · 1.9k across the 11 of their papers we have counts for
12 papers
Multimode photon blockade
Srivatsan Chakram, Kevin He, Akash V. Dixit +7
Interactions are essential for the creation of correlated quantum many-body states. While two-body interactions underlie most natural phenomena, three- and four-body interactions a…
Partial Compilation of Variational Algorithms for Noisy Intermediate-Scale Quantum Machines
Pranav Gokhale, Yongshan Ding, Thomas Propson +6
Quantum computing is on the cusp of reality with Noisy Intermediate-Scale Quantum (NISQ) machines currently under development and testing. Some of the most promising algorithms for…
Optimized Compilation of Aggregated Instructions for Realistic Quantum Computers
Yunong Shi, Nelson Leung, Pranav Gokhale +4
Recent developments in engineering and algorithms have made real-world applications in quantum computing possible in the near future. Existing quantum programming languages and com…
A Dissipatively Stabilized Mott Insulator of Photons
Ruichao Ma, Brendan Saxberg, Clai Owens +4
Superconducting circuits are a competitive platform for quantum computation because they offer controllability, long coherence times and strong interactions - properties that are e…
Deterministic Bidirectional Communication and Remote Entanglement Generation Between Superconducting Quantum Processors
N. Leung, Y. Lu, S. Chakram +6
We propose and experimentally demonstrate a simple and efficient scheme for photonic communication between two remote superconducting modules. Each module consists of a random acce…
Universal stabilization of a parametrically coupled qubit
Yao Lu, Srivatsan Chakram, Nelson Leung +7
We autonomously stabilize arbitrary states of a qubit through parametric modulation of the coupling between a fixed frequency qubit and resonator. The coupling modulation is achiev…
Realization of a system with metastable states of a capacitively-shunted fluxonium
Nathan Earnest, Srivatsan Chakram, Yao Lu +9
We realize a system in a superconducting circuit, with metastable states exhibiting lifetimes up to 8\,ms. We exponentially suppress the tunneling matrix elements involved in s…
Random access quantum information processors
R. K. Naik, N. Leung, S. Chakram +6
Qubit connectivity is an important property of a quantum processor, with an ideal processor having random access -- the ability of arbitrary qubit pairs to interact directly. Here,…
Speedup for quantum optimal control from automatic differentiation based on graphics processing units
Nelson Leung, Mohamed Abdelhafez, Jens Koch +1
We implement a quantum optimal control algorithm based on automatic differentiation and harness the acceleration afforded by graphics processing units (GPUs). Automatic differentia…
Observation of topological transitions in interacting quantum circuits
P. Roushan, C. Neill, Yu Chen +21
The discovery of topological phases in condensed matter systems has changed the modern conception of phases of matter. The global nature of topological ordering makes these phases…
Tunable coupler for superconducting Xmon qubits: Perturbative nonlinear model
Michael R. Geller, Emmanuel Donate, Yu Chen +3
We study a recently demonstrated design for a high-performance tunable coupler suitable for superconducting Xmon and planar transmon qubits [Y. Chen et al., arXiv:1402.7367]. The c…
Qubit architecture with high coherence and fast tunable coupling
Yu Chen, C. Neill, P. Roushan +20
We introduce a superconducting qubit architecture that combines high-coherence qubits and tunable qubit-qubit coupling. With the ability to set the coupling to zero, we demonstrate…