305 citations · 1.9k across the 39 of their papers we have counts for
40 papers
Classically computing performance bounds on depolarized quantum circuits
Sattwik Deb Mishra, Miguel Frías-Pérez, Rahul Trivedi
Quantum computers and simulators can potentially outperform classical computers in finding ground states of classical and quantum Hamiltonians. However, if this advantage can persi…
Quantum advantage and stability to errors in analogue quantum simulators
Rahul Trivedi, Adrian Franco Rubio, J. Ignacio Cirac
Several quantum hardware platforms, while being unable to perform fully fault-tolerant quantum computation, can still be operated as analogue quantum simulators for addressing many…
Realizing tight-binding Hamiltonians using site-controlled coupled cavity arrays
Abhi Saxena, Arnab Manna, Rahul Trivedi +1
Analog quantum simulators rely on programmable quantum devices to emulate Hamiltonians describing various physical phenomenon. Photonic coupled cavity arrays are a promising platfo…
Description and complexity of Non-markovian open quantum dynamics
Rahul Trivedi
Understanding and simulating non-Markovian quantum dynamics remains an important challenge in open quantum system theory. A key advance in this endeavour would be to develop a unif…
Error propagation in NISQ devices for solving classical optimization problems
Guillermo González-García, Rahul Trivedi, J. Ignacio Cirac
We propose a random circuit model to analyze the impact of noise on the performance of variational quantum circuits for classical optimization problems. Our model accounts for the…
Three-photon excitation of quantum two-level systems
Viviana Villafañe, Bianca Scaparra, Manuel Rieger +8
We demonstrate that semiconductor quantum dots can be excited efficiently in a resonant three-photon process, whilst resonant two-photon excitation is highly suppressed. Time-depen…
Gradient descent globally solves average-case non-resonant physical design problems
Rahul Trivedi
Optimization problems occurring in a wide variety of physical design problems, including but not limited to optical engineering, quantum control, structural engineering, involve mi…
Simulability transitions in continuous-time dynamics of local open quantum systems
Rahul Trivedi, J. Ignacio Cirac
We analyze the complexity of classically simulating continuous-time dynamics of locally interacting quantum spin systems with a constant rate of entanglement breaking noise. We pro…
Augmenting On-Chip Microresonator through Photonic Inverse Design
Geun Ho Ahn, Ki Youl Yang, Rahul Trivedi +4
Recent advances in the design and fabrication of on-chip optical microresonators has greatly expanded their applications in photonics, enabling metrology, communications, and on-ch…
Superradiance in dynamically modulated Tavis-Cumming model with spectral disorder
Alexander D. White, Rahul Trivedi, Kalyan Narayanan +1
Superradiance is the enhanced emission of photons from quantum emitters collectively coupling to the same optical mode. However, disorder in the resonant frequencies of the quantum…
Simulation of large-area metasurfaces with a distributed transition matrix method
Jinhie Skarda, Rahul Trivedi, Logan Su +5
Inverse design of large-area metasurfaces can potentially exploit the full parameter space that such devices offer and achieve highly efficient multifunctional flat optical element…
Convergence guarantees for discrete mode approximations to non-Markovian quantum baths
Rahul Trivedi, Daniel Malz, J. Ignacio Cirac
Non-Markovian effects are important in modeling the behavior of open quantum systems arising in solid-state physics, quantum optics as well as in study of biological and chemical s…
Quantum optics of soliton microcombs
Melissa A. Guidry, Daniil M. Lukin, Ki Youl Yang +2
Soliton microcombs -- phase-locked microcavity frequency combs -- have become the foundation of several classical technologies in integrated photonics, including spectroscopy, LiDA…
Quantum algorithms for powering stable Hermitian matrices
Guillermo González, Rahul Trivedi, J. Ignacio Cirac
Matrix powering is a fundamental computational primitive in linear algebra. It has widespread applications in scientific computing and engineering, and underlies the solution of ti…
Control design for inhomogeneous broadening compensation in single-photon transducers
Sattwik Deb Mishra, Rahul Trivedi, Amir H. Safavi-Naeini +1
A transducer of single photons between microwave and optical frequencies can be used to realize quantum communication over optical fiber links between distant superconducting quant…
Optimal two-photon excitation of bound states in non-Markovian waveguide QED
Rahul Trivedi, Daniel Malz, Shanhui Fan +1
Bound states arise in waveguide QED systems with a strong frequency-dependence of the coupling between emitters and photonic modes. While exciting such bound-states with single pho…
Few-particle scattering from localized quantum systems in spatially structured bosonic baths
Rahul Trivedi, Kevin Fischer, Shanhui Fan +1
Understanding dynamics of localized quantum systems embedded in engineered bosonic environments is a central problem in quantum optics and open quantum system theory. We present a…
The crux of using the cascaded emission of a 3-level quantum ladder system to generate indistinguishable photons
Eva Schöll, Lucas Schweickert, Lukas Hanschke +13
We investigate the degree of indistinguishability of cascaded photons emitted from a 3-level quantum ladder system; in our case the biexciton-exciton cascade of semiconductor quant…
Analytic and geometric properties of scattering from periodically modulated quantum-optical systems
Rahul Trivedi, Alex White, Shanhui Fan +1
We study the scattering of photons from periodically modulated quantum-optical systems. For excitation-number conserving quantum optical systems, we connect the analytic structure…
Spectrally reconfigurable quantum emitters enabled by optimized fast modulation
Daniil M. Lukin, Alexander D. White, Rahul Trivedi +16
The ability to shape photon emission facilitates strong photon-mediated interactions between disparate physical systems, thereby enabling applications in quantum information proces…
Fundamental bounds for scattering from absorptionless electromagnetic structures
Rahul Trivedi, Guillermo Angeris, Logan Su +3
The ability to design the scattering properties of electromagnetic structures is of fundamental interest in optical science and engineering. While there has been great practical su…
Point-coupling Hamiltonian for frequency-independent linear optical devices
Rahul Trivedi, Kevin Fischer, Sattwik Deb Mishra +1
We present the point-coupling Hamiltonian as a model for frequency-independent linear optical devices acting on propagating optical modes described as a continua of harmonic oscill…
On-chip integrated laser-driven particle accelerator
Neil V. Sapra, Ki Youl Yang, Dries Vercruysse +8
Particle accelerators represent an indispensable tool in science and industry. However, the size and cost of conventional radio-frequency accelerators limit the utility and reach o…
Data-driven acceleration of Photonic Simulations
Rahul Trivedi, Logan Su, Jesse Lu +2
Designing modern photonic devices often involves traversing a large parameter space via an optimization procedure, gradient based or otherwise, and typically results in the designe…