Optimized Quantum States for Sensing in the Presence of Loss and Phase Noise

Posted by klaurent Caltech

Kavli Affiliate: Rana Adhikari | Summary:Squeezed vacuum lets gravitational-wave detectors and other quantum sensors surpass the standard quantum limit, and is optimal in the loss-limited regime; phase noise breaks this optimality. Numerically optimizing the quantum Fisher information across the loss and phase-noise landscape, we identify non-Gaussian states that outperform any Gaussian state. These fall into […]


Continue.. Optimized Quantum States for Sensing in the Presence of Loss and Phase Noise

Optimized Quantum States for Sensing in the Presence of Loss and Phase Noise

Posted by klaurent Caltech

Kavli Affiliate: Rana Adhikari | Summary:Squeezed vacuum lets gravitational-wave detectors and other quantum sensors surpass the standard quantum limit, and is optimal in the loss-limited regime; phase noise breaks this optimality. Numerically optimizing the quantum Fisher information across the loss and phase-noise landscape, we identify non-Gaussian states that outperform any Gaussian state. These fall into […]


Continue.. Optimized Quantum States for Sensing in the Presence of Loss and Phase Noise

Shared potential metabolism trends in degraded soils and type 2 diabetes gut microbiomes

Posted by dbos UCSF

Kavli Affiliate: Robert Edwards | Authors: Craig Liddicoat, Bart A Eijkelkamp, Timothy R Cavagnaro, Jake M Robinson, Kiri Joy Wallace, Andrew D Barnes, Garth Harmsworth, Damien J Keating, Robert A Edwards and Martin F Breed | Summary: Global change profoundly impacts microbial systems but cascading effects on human metabolic health remain largely unexplored. Type 2 […]


Continue.. Shared potential metabolism trends in degraded soils and type 2 diabetes gut microbiomes

Tyrosinase-induced neuromelanin accumulation triggers rapid dysregulation and degeneration of the mouse locus coeruleus

Posted by dbos Hopkins

Kavli Affiliate: Keri Martinowich | Authors: Leslie Hassanein, Bernard Mulvey, Harris Blankenship, Margaret M Tish, Anu Korukonda, L Cameron Liles, Amanda L Sharpe, Jean-Francois Pare, Rosa Villalba, Xiangchuan Chen, Khan Hekmatyar, Jenny Yang, Daniel Huddleston, Seong Su Kang, Arielle Segal, Steven A Sloan, Keri Martinowich, Keqiang Ye, Joseph D Dougherty, Katharine E McCann, Yoland Smith, […]


Continue.. Tyrosinase-induced neuromelanin accumulation triggers rapid dysregulation and degeneration of the mouse locus coeruleus

Behavioral Signatures of Post-Decisional Attention in Preferential Choice

Posted by dbos Columbia

Kavli Affiliate: Michael Shadlen | Authors: Ariel Zylberberg, Ian Krajbich and Michael N Shadlen | Summary: Attention plays a key role in decision-making by directing limited cognitive resources to relevant information. It has been proposed that attention also biases the decision process, due to a multiplicative interaction between attention and subjective value (e.g., Krajbich et […]


Continue.. Behavioral Signatures of Post-Decisional Attention in Preferential Choice

Type 1 lymphocytes accumulate in the thalamus and produce interferon-γ to restrict seizure susceptibility after brain injury

Posted by dbos UCSF

Kavli Affiliate: Anna Molofsky and Jeanne Paz | Authors: Nicholas M Mroz, Agnieszka Ciesielska, Nathan A Ewing-Crystal, Leah C Dorman, Rafael T Han, Jerika J Barron, Nicholas J Silva, Audrey Magsig, Anna V Molofsky, Ari B Molofsky and Jeanne T Paz | Summary: Chronic neural circuit hyperexcitability frequently emerges after brain injury, but endogenous mechanisms […]


Continue.. Type 1 lymphocytes accumulate in the thalamus and produce interferon-γ to restrict seizure susceptibility after brain injury

Cell-type-specific cortical feedback coordinates hierarchical credit assignment

Posted by dbos Columbia

Kavli Affiliate: Rui Costa | Authors: Will Greedy, Heng Wei Zhu, Alexia Duriez, Joseph Pemberton, Patrick T. McCarthy, Kevin Kermani Nejad and Rui Ponte Costa | Summary: Learning is thought to arise from synaptic modifications embedded in brain-wide circuits 1–3, yet how such circuits coordinate plasticity to support complex behaviour is not known 4,5. Inspired […]


Continue.. Cell-type-specific cortical feedback coordinates hierarchical credit assignment

Direct Tests of Black Hole Accretion Rate Prescriptions: I. Bondi Accretion at Different Scales

Posted by klaurent Peking

Kavli Affiliate: Claudio Ricci | Summary:We present spatially resolved parsec-scale measurements of nuclear conditions (gas density and kinetic temperature) relevant for black hole accretion rate predictions in the Seyfert 2 galaxy, NGC 1068. We inject these parameters into the prescription for a Bondi-like accretion model, then compare the resulting accretion rate prediction to the empirical […]


Continue.. Direct Tests of Black Hole Accretion Rate Prescriptions: I. Bondi Accretion at Different Scales

Direct Tests of Black Hole Accretion Rate Prescriptions: I. Bondi Accretion at Different Scales

Posted by klaurent Peking

Kavli Affiliate: Claudio Ricci | Summary:We present spatially resolved parsec-scale measurements of nuclear conditions (gas density and kinetic temperature) relevant for black hole accretion rate predictions in the Seyfert 2 galaxy, NGC 1068. We inject these parameters into the prescription for a Bondi-like accretion model, then compare the resulting accretion rate prediction to the empirical […]


Continue.. Direct Tests of Black Hole Accretion Rate Prescriptions: I. Bondi Accretion at Different Scales

Improved proper motion and gravity tests with PSR J1913+1102

Posted by klaurent Peking

Kavli Affiliate: Lijing Shao | Summary:PSR J1913+1102 is a highly asymmetric double neutron star system and an excellent laboratory for testing scalar-tensor gravity theories, as well as a potential progenitor analogue of GW170817 that will merge in 470 Myr. We present an updated timing analysis combining 13 years of historical Arecibo observations and new FAST […]


Continue.. Improved proper motion and gravity tests with PSR J1913+1102