10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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14 papers · 2 filters
Rapid mixing of path integral Monte Carlo for 1D stoquastic Hamiltonians
Elizabeth Crosson, Aram W. Harrow
Path integral quantum Monte Carlo (PIMC) is a method for estimating thermal equilibrium properties of stoquastic quantum spin systems by sampling from a classical Gibbs distributio…
Holographic rainbow networks for colorful Motzkin and Fredkin spin chains
Rafael N. Alexander, Amr Ahmadain, Zhao Zhang +1
We present bulk tensor networks that exactly represent the ground states of a continuous family of one-dimensional frustration-free Hamiltonians. These states, which are known as a…
Squeezing the angular momentum of an ensemble of complex multi-level atoms
Daniel Hemmer, Enrique Montano, Ben Q. Baragiola +4
Squeezing of collective atomic spins has been shown to improve the sensitivity of atomic clocks and magnetometers to levels significantly below the standard quantum limit. In most…
Good approximate quantum LDPC codes from spacetime circuit Hamiltonians
Thomas C. Bohdanowicz, Elizabeth Crosson, Chinmay Nirkhe +1
We study approximate quantum low-density parity-check (QLDPC) codes, which are approximate quantum error-correcting codes specified as the ground space of a frustration-free local…
Wigner Inequalities for Test of Hypothesis of Realism and Concepts of Macroscopic and Local Realism
N. Nikitin, K. Toms
We propose a new Wigner inequality suitable for test of the hypothesis of realism. We show that this inequality is not identical neither to the well-known Wigner inequality nor to…
Robust Measurement for the Discrimination of Binary Coherent States
M. T. DiMario, F. E. Becerra
The discrimination of two nonorthogonal states is a fundamental element for secure and efficient communication. Quantum measurements of nonorthogonal coherent states can enhance in…
Quantum limited super-localization and super-resolution of a source pair in three dimensions
Sudhakar Prasad, Zhixian Yu
A recent paper [Z. Yu and S. Prasad, "Quantum limited superresolution of an incoherent source pair in three dimensions," arXiv:1805.09227v2 [quant-ph] (2018)] considered the proble…
Exact holographic tensor networks for the Motzkin spin chain
Rafael N. Alexander, Glen Evenbly, Israel Klich
The study of low-dimensional quantum systems has proven to be a particularly fertile field for discovering novel types of quantum matter. When studied numerically, low-energy state…
Changing the circuit-depth complexity of measurement-based quantum computation with hypergraph states
Mariami Gachechiladze, Otfried Gühne, Akimasa Miyake
While the circuit model of quantum computation defines its logical depth or "computational time" in terms of temporal gate sequences, the measurement-based model could allow totall…
Quantum limited superresolution of an incoherent source pair in three dimensions
Zhixian Yu, Sudhakar Prasad
The error in estimating the separation of a pair of incoherent sources from radiation emitted by them and subsequently captured by an imager is fundamentally bounded below by the i…
Quantum computational supremacy in the sampling of bosonic random walkers on a one-dimensional lattice
Gopikrishnan Muraleedharan, Akimasa Miyake, Ivan H. Deutsch
We study the sampling complexity of a probability distribution associated with an ensemble ofidentical noninteracting bosons undergoing a quantum random walk on a one-dimensional l…
Optimal Pure-State Qubit Tomography via Sequential Weak Measurements
Ezad Shojaee, Christopher S. Jackson, Carlos A. Riofrio +2
The spin-coherent-state positive-operator-valued-measure (POVM) is a fundamental measurement in quantum science, with applications including tomography, metrology, teleportation, b…
Implementation of a single-shot receiver for quaternary phase-shift keyed coherent states
M. T. DiMario, E. Carrasco, R. A. Jackson +1
We experimentally investigate a strategy to discriminate between quaternary phase-shift keyed coherent states based on single-shot measurements that is compatible with high-bandwid…
Quantum Optimal Control: Landscape Structure and Topology
Martín Larocca, Pablo Poggi, Diego Wisniacki
The core problem in optimal control theory applied to quantum systems is to determine the temporal shape of an applied field in order to maximize the expectation of value of some p…