Researchers demonstrated a single hybrid quantum interferometer capable of dynamically switching between Hong-Ou-Mandel and N00N-state interference by adjusting time delays, enabling adaptive quantum sensing across varying noise environments.

#QuantumSensing #QuantumPhotonics #QuantumInterferometry

Researchers demonstrated a single hybrid quantum interferometer capable of dynamically switching between Hong-Ou-Mandel and N00N-state interference by adjusting time delays, enabling adaptive quantum sensing across varying noise environments.

#QuantumSensing #QuantumPhotonics #QuantumInterferometry

Demonstrated ~14.6 dB spin squeezing in Bose-Einstein condensates via fractional-revival dynamics combined with controlled interaction quenching, achieving sub-SQL phase sensitivity for quantum-enhanced interferometry.

#QuantumInterferometry #SpinSqueezing #Research

Two Mach-Zehnder interferometers with identical visibility and energy storage extract different amounts of work: coherent ergotropy is governed by path predictability that output fringes cannot detect.

#QuantumBatteries #QuantumThermodynamics #QuantumInterferometry

Unified quantum framework reveals how interaction-free measurement and delayed-choice experiments emerge from the same quantum circuit, enabling continuous transitions between wave and particle behavior.

#QuantumInterferometry #QuantumMeasurement #Research

We derive exact which-path decoherence from gravitons in matter-wave interferometry. Both quantum vacuum and inflationary backgrounds predict negligible effects in current experiments, establishing fundamental limits for detecting quantum gravity.

#QuantumGravity #QuantumInterferometry #Research

TU Wien researchers developed a simplified method to fully characterize path weak-values in Mach-Zehnder interferometers using only intensity measurements and controlled phase shifts, eliminating the need for conventional meter states and weak interactions.

#WeakValues #QuantumInterferometry #News

Novel method extracts quantum weak values without meter states using only intensity measurements and phase shifts, demonstrating anomalous weak values in neutron interferometry that reveal nonclassical quantum behavior.

#QuantumMeasurement #QuantumInterferometry #Research

Multi-path interferometry enables practical tests of preparation contextuality using only pairwise visibility measurements, with tight quantum bounds derived for n-path systems and experimental feasibility confirmed on photonic platforms.

#QuantumContextuality #QuantumInterferometry #Research

Bar-Ilan researchers propose a dual SU(1,1) interferometer using polarization-entangled, two-mode squeezed light to detect birefringence 3–15 dB below the shot-noise limit, robust to detector inefficiency under realistic loss conditions.

#QuantumSensing #QuantumInterferometry #Research