15 citations · 18 across the 10 of their papers we have counts for
10 papers
Computing with qLDPC Codes by Climbing the Chain Map Hierarchy
Rahul Sahay, David M. Long, Vedika Khemani
We develop a framework for logical computation with qLDPC codes that places logical Pauli, Clifford, and non-Clifford operations on the same footing. This brings the simple homolog…
Engineering quantum criticality and dynamics on an analog-digital simulator
Alexandra A. Geim, Nazli Ugur Koyluoglu, Simon J. Evered +14
Understanding emergent phenomena in out-of-equilibrium interacting many-body systems is an exciting frontier in physical science. While quantum simulators represent a promising app…
Non-Abelian Quantum Low-Density Parity Check Codes and Non-Clifford Operations from Gauging Logical Gates via Measurements
Maine Christos, Chiu Fan Bowen Lo, Vedika Khemani +1
In this work, we introduce constructions for non-Abelian qLDPC codes obtained by gauging transversal Clifford gates using measurement and feedback. In particular, we identify two q…
Spin Polarons in Flat Band Ferromagnets
Saranesh Prembabu, Rahul Sahay, Stefan Divic +1
Spin polarons are bound states of electrons and spin-flips that form above spin polarized electronic insulators.These bound states conventionally form in one of two settings: in fr…
Topological Phase Transitions and Mixed State Order in a Hubbard Quantum Simulator
Lin Su, Rahul Sahay, Michal Szurek +5
Topological phase transitions challenge conventional paradigms in many-body physics by separating phases that are locally indistinguishable yet globally distinct. Using a quantum s…
Enforced Gaplessness from States with Exponentially Decaying Correlations
Rahul Sahay, Curt von Keyserlingk, Ruben Verresen +1
It is well known that an exponentially localized Hamiltonian must be gapless if its ground state has algebraic correlations. We show that even certain exponentially decaying correl…
Shortcuts to Analog Preparation of Non-Equilibrium Quantum Lakes
Nik O. Gjonbalaj, Rahul Sahay, Susanne F. Yelin
The dynamical preparation of exotic many-body quantum states is a persistent goal of analog quantum simulation, often limited by experimental coherence times. Recently, it was show…
Classifying One-Dimensional Quantum States Prepared by a Single Round of Measurements
Rahul Sahay, Ruben Verresen
Measurements and feedback have emerged as powerful resources for creating many-body quantum states. However, a detailed understanding has been restricted to fixed-point representat…
Finite-Depth Preparation of Tensor Network States from Measurement
Rahul Sahay, Ruben Verresen
Although tensor network states constitute a broad range of exotic quantum states, their realization is challenging and often requires resources whose depth scales with system size.…
Emergent Holographic Forces from Tensor Networks and Criticality
Rahul Sahay, Mikhail D. Lukin, Jordan Cotler
The AdS/CFT correspondence stipulates a duality between conformal field theories and certain theories of quantum gravity in one higher spatial dimension. However, probing this conj…