154 citations · 1.1k across the 29 of their papers we have counts for
29 papers
Quantum noise and its evasion in feedback oscillators
Hudson A. Loughlin, Vivishek Sudhir
We study an abstract model of an oscillator realized by an amplifier embedded in a positive feedback loop. The power and frequency stability of the output of such an oscillator are…
Causal State Estimation and the Heisenberg Uncertainty Principle
Junxin Chen, Benjamin B. Lane, Su Direkci +5
The observables of a noisy quantum system can be estimated by appropriately filtering the records of their continuous measurement. Such filtering is relevant for state estimation a…
Unification of thermal and quantum noise in gravitational-wave detectors
Chris Whittle, Lee McCuller, Vivishek Sudhir +1
Contemporary gravitational-wave detectors are fundamentally limited by thermal noise -- due to dissipation in the mechanical elements of the test mass -- and quantum noise -- from…
Limits and prospects for long-baseline optical fiber interferometry
Christopher Hilweg, Danial Shadmany, Philip Walther +2
Today's most precise optical instruments -- gravitational-wave interferometers and optical atomic clocks -- rely on long storage times for photons to realize their exquisite sensit…
Theory of phase-adaptive parametric cooling
Alekhya Ghosh, Pardeep Kumar, Fidel Jimenez +2
We propose an adaptive phase technique for the parametric cooling of mechanical resonances. This involves the detection of the mechanical quadratures, followed by a sequence of per…
Snowmass White Paper: Precision Studies of Spacetime Symmetries and Gravitational Physics
Eric Adelberger, Dmitry Budker, Ron Folman +12
High-energy physics is primarily concerned with uncovering the laws and principles that govern nature at the fundamental level. Research in this field usually relies on probing the…
Quantum theory of feedback cooling of an anelastic macro-mechanical oscillator
Kentaro Komori, Dominika Ďurovčíková, Vivishek Sudhir
Conventional techniques for laser cooling, by coherent scattering off of internal states or through an optical cavity mode, have so far proved inefficient on mechanical oscillators…
Thermorefringent noise in crystalline optical materials
Serhii Kryhin, Evan D. Hall, Vivishek Sudhir
Any material in thermal equilibrium exhibits fundamental thermodynamic fluctuations of its mechanical and optical properties. Such thermodynamic fluctuations of length, elastic con…
Acceleration-induced effects in stimulated light-matter interactions
Barbara Šoda, Vivishek Sudhir, Achim Kempf
The interaction between light and an atom proceeds via three paradigmatic mechanisms: spontaneous emission, stimulated emission, and absorption. All three are resonant processes in…
A Novel Modulation Scheme for Homodyne Detection Control
Danial Shadmany, Benjamin Lane, Vivishek Sudhir +1
Controlling the quadrature measured by a homodyne detector is a universal task in continuous-variable quantum optics. However, deriving an error signal that is linear across theent…
Unruh Effect of Detectors with Quantized Center-of-Mass
Vivishek Sudhir, Nadine Stritzelberger, Achim Kempf
The Unruh effect is the prediction that particle detectors accelerated through the vacuum get excited by the apparent presence of radiation quanta -- a fundamental quantum phenomen…
Approaching the motional ground state of a 10 kg object
Chris Whittle, Evan D. Hall, Sheila Dwyer +197
The motion of a mechanical object -- even a human-sized object -- should be governed by the rules of quantum mechanics. Coaxing them into a quantum state is, however, difficult: th…
All-sky search in early O3 LIGO data for continuous gravitational-wave signals from unknown neutron stars in binary systems
The LIGO Scientific Collaboration, the Virgo Collaboration, R. Abbott +1369
Rapidly spinning neutron stars are promising sources of persistent, continuous gravitational waves. Detecting such a signal would allow probing of the physical properties of matter…
Bell correlations between light and vibration at ambient conditions
Santiago Tarrago Velez, Vivishek Sudhir, Nicolas Sangouard +1
Time-resolved Raman spectroscopy techniques offer various ways to study the dynamics of molecular vibrations in liquids or gases and optical phonons in crystals. While these techni…
Atto-Nm Torque Sensing with a Macroscopic Optomechanical Torsion Pendulum
Kentaro Komori, Yutaro Enomoto, Ching Pin Ooi +5
Precise measurements of the displacement of, and force acting on, a mechanical oscillator can be performed by coupling the oscillator to an optical cavity. Brownian thermal forces…
All-sky search for short gravitational-wave bursts in the second Advanced LIGO and Advanced Virgo run
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1186
We present the results of a search for short-duration gravitational-wave transients in the data from the second observing run of Advanced LIGO and Advanced Virgo. We search for gra…
The US Program in Ground-Based Gravitational Wave Science: Contribution from the LIGO Laboratory
David Reitze, Rich Abbott, Carl Adams +181
Recent gravitational-wave observations from the LIGO and Virgo observatories have brought a sense of great excitement to scientists and citizens the world over. Since September 201…
All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO O2 data
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1130
We present results of an all-sky search for continuous gravitational waves (CWs), which can be produced by fast-spinning neutron stars with an asymmetry around their rotation axis,…
Preparation and decay of a single quantum of vibration at ambient conditions
Santiago Tarrago Velez, Kilian Seibold, Nils Kipfer +3
A single quantum of excitation of a mechanical oscillator is a textbook example of the principles of quantum physics. Mechanical oscillators, despite their pervasive presence in na…
Evidence for structural damping in a high-stress silicon nitride nanobeam and its implications for quantum optomechanics
S. A. Fedorov, V. Sudhir, R. Schilling +3
We resolve the thermal motion of a high-stress silicon nitride nanobeam at frequencies far below its fundamental flexural resonance (3.4 MHz) using cavity-enhanced optical interfer…
Quantum correlations of light due to a room temperature mechanical oscillator for force metrology
Vivishek Sudhir, Ryan Schilling, Sergey A. Fedorov +3
The coupling of laser light to a mechanical oscillator via radiation pressure leads to the emergence of quantum mechanical correlations between the amplitude and phase quadrature o…
Appearance and disappearance of quantum correlations in measurement-based feedback control of a mechanical oscillator
Vivishek Sudhir, Dalziel J. Wilson, Ryan Schilling +5
Quantum correlations between imprecision and back-action are a hallmark of continuous linear measurements. Here we study how measurement-based feedback can be used to improve the v…
A strongly-coupled -type micromechanical system
Hajime Okamoto, Ryan Schilling, Hendrik Schütz +4
We study a classical -type three-level system based on three high- micromechanical beam resonators embedded in a gradient electric field. By modulating the strength of the fi…
Quantum-limited amplification and parametric instability in the reversed dissipation regime of cavity optomechanics
A. Nunnenkamp, V. Sudhir, A. K. Feofanov +2
Cavity optomechanical phenomena, such as cooling, amplification or optomechanically induced transparency, emerge due to a strong imbalance in the dissipation rates of the parametri…