![]() The spectre of Schrödinger’s cat looms sphinx-like over the entire proceedings – did everyone accidentally dab too much of the aforementioned dubious keta-tincture?īyrkit shoots and edits the whole thing as if we are witnessing a particularly phantasmagorical reality TV show, complete with shaky cameras, the odd blurry shot, and characters talking over each other, along with sudden cuts to black. Em meets Kevin at their car, but there is something about him she doesn’t quite recognise, while nobody seems to be able to escape from this dark and discombobulating purgatory. Inside one of the other homes, they have glimpsed a group of people who look remarkably like themselves. The pair who departed soon return with a strange box containing Polaroid-style photographs of each of the party guests, and a set of numbers written on the back, along with an apparently innocuous table tennis paddle. So far, so stereotypical cabin in the woods scenario, and yet standard horror tropes are soon swapped out for far more cerebral sci-fi stylings. Two of the partygoers begin investigating nearby homes to try to establish if anyone in the neighbourhood has a working telephone. The evening begins amicably enough, but then a power cut puts the wind up the party guests, shutting down wifi and, apparently, mobile phone connectivity. It is clear that Mike (Nicholas Brendon) has a drinking problem, while another guest, Beth, has a bizarre habit of offering ketamine-laced tincture to anyone who fancies it, which may or may not be adding to the general sense of dysphoria and dislocation. There are tensions from the start: Em (Emily Baldoni) has turned down her boyfriend Kevin’s request to join him on a work trip to Vietnam, and is nervous that his vampy ex Laurie has also been invited along to the gathering. The state of the cavity, conditioned on her measurement is \(\) follows from known results on optimal covariant phase estimation.The film-maker’s 2013 debut centres on eight friends who gather for a dinner party in a California home on the night that a comet is due to pass by. At an immediately following time T > T, we suppose an observer, Effie, can perform heterodyne filtering over the beam emitted in the interval [ T − τ, T), to obtain a phase estimate ϕ F of the cavity at time T. Initially, we consider the cavity at time T in steady state, and the segment of the beam emitted since time T − τ. Time increases from the top to the bottom but is branched. Introduction to Quantum Control and Dynamics (CRC Press, 2007). Expokit: a software package for computing matrix exponentials. Table of Integrals, Series and Products 571 (Academic Press, 2014). Nearly optimal multiuser codes for the binary adder channel. How many principles does it take to change a light bulb … into a laser? Phys. Tradeoff between extractable mechanical work, accessible entanglement, and ability to act as a reference system, under arbitrary superselection rules. Colloquium: quantum coherence as a resource. Simulating quantum light propagation through atomic ensembles using matrix product states. Matrix product states for quantum metrology. Sequential generation of matrix-product states in cavity qed. Sequential generation of entangled multiqubit states. Schön, C., Solano, E., Verstraete, F., Cirac, J. Realistic quantum states of light with minimum phase uncertainty. Quantum Measurement and Control (Cambridge Univ. Quantum-limited frequency fluctuations in a terahertz laser. (eds) Laser Physics (Addison-Wesley, 1974). Quantum Statistical Properties of Radiation (Wiley, 1973). When atoms behave as waves: Bose–Einstein condensation and the atom laser. Prospects for a millihertz-linewidth laser. The density-matrix renormalization group in the age of matrix product states. A practical introduction to tensor networks: matrix product states and projected entangled pair states. Infinite size density matrix renormalization group, revisited. Reference frames, superselection rules, and quantum information. ![]() Entanglement constrained by superselection rules. Deterministic teleportation of a quantum gate between two logical qubits. Real-time quantum feedback prepares and stabilizes photon number states. Stochastic Heisenberg limit: optimal estimation of a fluctuating phase. ![]() Quantum-mechanical noise in an interferometer. Quantum-enhanced measurements: beating the standard quantum limit. From cavity to circuit quantum electrodynamics. Perez-Garcia, D., Verstraete, F., Wolf, M. Light amplification without stimulated emission: beyond the standard quantum limit to the laser linewidth. Statistical Methods in Quantum Optics 1 (Springer, 1999).
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