63 citations · 365 across the 40 of their papers we have counts for
41 papers
Non-stabilizerness and entanglement in -dimensional SU(2) lattice gauge theory using tensor networks
Raghav G. Jha, Jaber I. Taher, Muhammad Asaduzzaman +3
We study non-stabilizerness (magic) in the ground state of -dimensional Hamiltonian lattice gauge theory with matter, formulated in the dressed-site basis i…
Efficient computation of real-time correlators using Pauli Propagation
Alexander F. Kemper, Raghav G. Jha, Arnab Bachhar +3
Pauli propagation has shown promise for classically simulating quantum dynamics by evolving observables directly in the Heisenberg picture. In this work, we investigate its use for…
Ground state preparation of random all-to-all Hamiltonians using ADAPT-VQE
Sabhyata Gupta, Bharath Sambasivam, Sophia E. Economou +3
The ground state of random Hamiltonians with all-to-all interactions such as the quantum Sherrington-Kirkpatrick (SK) model and the Sachdev-Ye-Kitaev (SYK) model follow volume-law…
Magic and entanglement in 1+1-dimensional SU(2) lattice gauge theory
Raghav G. Jha, Goksu C. Toga, Jaber I. Taher +2
Entanglement and non-stabilizerness (magic) quantify two distinct departures of quantum systems from classical description: the former measures non-local correlations, while the la…
Tensor renormalization group approach to the models via symmetry-twisted partition functions
Shinichiro Akiyama, Raghav G. Jha, Jun Maeda +2
We investigate critical phenomena in the models using symmetry-twisted partition functions that can be efficiently computed within the tensor renormalization group framework…
Quantum simulation of massive Thirring and Gross--Neveu models for arbitrary number of flavors
Bojko N. Bakalov, Joao C. Getelina, Raghav G. Jha +2
The study of fermionic quantum field theories is an important problem for realizing the standard model of particle physics on a quantum computer. As a step towards this goal, we co…
Tensor renormalization group approach to critical phenomena via symmetry-twisted partition functions
Shinichiro Akiyama, Raghav G. Jha, Jun Maeda +2
The locality of field theories strongly constrains the possible behaviors of symmetry-twisted partition functions, and thus they serve as order parameters to detect low-energy real…
Hybrid continuous-discrete-variable quantum computing: a guide to utility
A. F. Kemper, Antonios Alvertis, Muhammad Asaduzzaman +24
Quantum computing has traditionally centered around the discrete variable paradigm. A new direction is the inclusion of continuous variable modes and the consideration of a hybrid…
On Ising model in magnetic field on the lattice
Raghav G. Jha
We study the free energy of the classical square-lattice Ising model in a uniform real magnetic field , for which no exact solution is known. We first conjecture a closed-form e…
Finite-temperature phase diagram of the BMN matrix model on the lattice
Raghav G. Jha, Anosh Joseph, David Schaich
We investigate the thermal phase structure of the Berenstein--Maldacena--Nastase (BMN) matrix model using non-perturbative lattice Monte Carlo calculations. Our main analyses span…
Real-Time Scattering in Ising Field Theory using Matrix Product States
Raghav G. Jha, Ashley Milsted, Dominik Neuenfeld +2
We study scattering in Ising Field Theory (IFT) using matrix product states and the time-dependent variational principle. IFT is a one-parameter family of strongly coupled non-inte…
Quantum computation of SU(2) lattice gauge theory with continuous variables
Victor Ale, Nora M. Bauer, Raghav G. Jha +2
We present a quantum computational framework for SU(2) lattice gauge theory, leveraging continuous variables instead of discrete qubits to represent the infinite-dimensional Hilber…
Sparsity dependence of Krylov state complexity in the SYK model
Raghav G. Jha, Ranadeep Roy
We study the Krylov state complexity of the Sachdev-Ye-Kitaev (SYK) model for Majorana fermions with -body fermion interaction with for a range of sparse pa…
Thermal state preparation of the SYK model using a variational quantum algorithm
Jack Y. Araz, Raghav G. Jha, Felix Ringer +1
We study the preparation of thermal states of the dense and sparse Sachdev-Ye-Kitaev (SYK) model using a variational quantum algorithm for Majorana fermions over a…
Phase diagram of generalized XY model using tensor renormalization group
Abhishek Samlodia, Vamika Longia, Raghav G. Jha +1
We use the higher-order tensor renormalization group method to study the two-dimensional generalized XY model that admits integer and half-integer vortices. This model is the defor…
Hamiltonian simulation of minimal holographic sparsified SYK model
Raghav G. Jha
The circuit complexity for Hamiltonian simulation of the sparsified SYK model with Majorana fermions and (quartic interactions) which retains holographic features (referr…
Tensor renormalization group study of 3D principal chiral model
Shinichiro Akiyama, Raghav G. Jha, Judah Unmuth-Yockey
We study the three-dimensional principal chiral model (PCM) using different tensor renormalization group methods based on the triad and anisotropic decomposition of the ten…
Nonperturbative phase diagram of two-dimensional super-Yang--Mills
Navdeep Singh Dhindsa, Raghav G. Jha, Anosh Joseph +1
We consider two-dimensional Yang--Mills theory with gauge group SU() in Euclidean signature compactified on a torus with thermal fermion boundary conditions…
Sachdev-Ye-Kitaev model on a noisy quantum computer
Muhammad Asaduzzaman, Raghav G. Jha, Bharath Sambasivam
We study the SYK model -- an important toy model for quantum gravity on IBM's superconducting qubit quantum computers. By using a graph-coloring algorithm to minimize the number of…
Continuous variable quantum computation of the model in 1+1 dimensions
Raghav G. Jha, Felix Ringer, George Siopsis +1
We formulate the non-linear sigma model in 1+1 dimensions as a limit of a three-component scalar field theory restricted to the unit sphere in the large squeezing limit. Thi…
Toward quantum computations of the model using qumodes
Raghav G. Jha, Felix Ringer, George Siopsis +1
We express the discrete 1+1-dimensional non-linear sigma model (NLM) in a form well-suited for the continuous variable approach to quantum computing. Within the Schwinger…
GPU-Acceleration of Tensor Renormalization with PyTorch using CUDA
Raghav G. Jha, Abhishek Samlodia
We show that numerical computations based on tensor renormalization group (TRG) methods can be significantly accelerated with PyTorch on graphics processing units (GPUs) by leverag…
Notes on Quantum Computation and Information
Raghav G. Jha
We discuss fundamentals of quantum computing and information - quantum gates, circuits, algorithms, theorems, error correction, and provide collection of QISKIT programs and exerci…
Thermal phase structure of dimensionally reduced super-Yang--Mills
David Schaich, Raghav G. Jha, Anosh Joseph
We present our current results from ongoing lattice investigations of the Berenstein--Maldacena--Nastase deformation of maximally supersymmetric Yang--Mills quantum mechanics. We f…