Lifeboat Foundation

By Alex Hill, Senior Quantum Systems Engineer

Qubits are the basic building block of a quantum processor, and are so named because they represent a continuum of complex superpositions of two basic quantum states. The power of qubits comes in part from their ability to encode significantly more information than a classical bit — an infinite set of states between 0 and 1. In mathematical terms, quantum gates that manipulate the state of individual qubits are unitary operators drawn from SU.

Rigetti’s superconducting quantum processors are based on the transmon design [1]. Each physical qubit is an anharmonic oscillator, meaning that the energy gaps between subsequent qubit energy states decrease as the qubit climbs higher up the state ladder. We typically only address the first two states, 0 and 1 (in the literature, sometimes referred to as g(round) and e(xcited)); however, the design of our qubits supports even higher states. The simple structure of the transmon energy levels gives superconducting qubits the unique ability to address many of these states in a single circuit.

The increase in tensions between the United States and Russia due to Moscow amassing troops on the border with Ukraine is raising concerns Russia may not only put boots on the ground but also turn to hacking operations to put pressure on the U.S. and Ukraine.

Those concerns are underlined by massive hacking efforts by Russia against Ukraine over the past few years and the ransomware attacks linked to Russian hackers against critical U.S. organizations.

“This is a Russian calling card,” Mark Montgomery, senior director of the Center on Cyber and Technology Innovation at the Foundation for Defense of Democracies, told The Hill Wednesday. “I do worry that they will use their cyber and disinformation tools to try to undermine the stability of the Ukrainian economic security and national security.”

The PLA is pivoting to confront changing challenges – and that means more combat personnel, according to one commentator.

A suspected Chinese hacking campaign has breached four more US defense and technology companies in the last month, and hundreds more US organizations are running the type of vulnerable software that the attackers have exploited, according to research shared with CNN.

The apparent espionage activity, which the National Security Agency helped investigate when it emerged in recent months, is more extensive than previously known and has seen the hackers steal passwords from targeted organizations with a goal of intercepting sensitive communications.

The cybersecurity researchers in November publicly confirmed just one victimized US organization, CNN reported then, but they now say the number is at least five and could continue to grow.

A senior Western intel official warns war would have far-reaching consequences on the continent.

Agency reports 235 ransomware attacks on Canadian targets this year, half of which were key infrastructure providers.

The James Webb Space Telescope is confirmed for the target launch date of December 24, at 7:20 a.m. EST.

Late on December 17, teams at the launch site successfully completed encapsulation of the observatory inside the Ariane 5 rocket that will launch it to space. Webb’s final launch readiness review will be held on Tuesday, December 21 and, if successful, roll-out is planned for Wednesday, December 22.

In August, NASA released beautiful footage captured by Perseverance rover of Deimos, the smaller of Mars’ two moons.

We suggest an interpretation of quantum mechanics, inspired by the ideas of Aharonov et al. of a time-symmetric description of quantum theory. We show that a special final boundary condition for the Universe, may be consistently defined as to determine single classical-like measurement outcomes, thus solving the “measurement problem”. No other deviation is made from standard quantum mechanics, and the resulting theory is deterministic (in a two-time sense) and local. Quantum mechanical probabilities are recovered in general, but are eliminated from the description of any single measurement. We call this the Two-time interpretation of quantum mechanics. We analyze ideal measurements, showing how the quantum superposition is, in effect, dynamically reduced to a single classical state via a “two-time decoherence” process.