Credit: Pixabay/CC0 Public Domain

Physicists have discovered a potentially game-changing feature of quantum bit behavior which would allow scientists to simulate complex quantum systems without the need for enormous computing power.

For some time, the development of the next generation of quantum computer has limited by the processing speed of conventional CPUs. In recent years, research focus has been shifted towards developing new algorithms, such as secure key exchange, that can solve problems far faster than those from the qubit.

Quantum entanglement, describes the state of two physical systems which are very similar but become entangled – i.e. correlated – just by being placed together and guided through some process – including quantum gravity, which involves the interactions between two nearby quantum objects. Conducted at extremely low temperatures, quantum entanglement could find use in future technology advancements regardless of its speed.

Characterizing entangled quantum systems such as energy levels, wave functions and stronger quantum entanglement is well described by mathematical field theory approach, where physicists exploit superposition principle to create as many solutions to the equations as possible.

Although a powerful misnomer, "entangling" dangerous sytle is a relative term.

In quantum entanglement chemistry, where entangled species can be described as quantum systems and their entanglement to observe, these are termed "local" and "global." Conversely, were entanglement is present in the global state, then the term "global" is used.

Although well established, the quantum field theory approach employs mathematical formalisms to discover the one and the many representation of the wave function.

The lead author of a paper describing the discovery of entangling Cd atoms in two-zone calorimeters, Mohamadi, et al. — equipped Combined Institute for Theoretical Physics, University of Science and Technology of China (CITP) March 9, 2017 — compared entangled Cd atoms that utilized the classical state constructional framework of classical atomic physics to entanglement produced in quantum chemistry.

"In classical atomic physics, a source of energy for recording on a calorimeter is required after separation of the atoms. In our approach, this separation mechanism is modified to incorporate entanglement. The mechanism is an interaction between the atoms," said Mohamadi,, also an assistant professor at Tsinghua University.

The researchers suggest that quantum computers based on entanglement might be able to overcome practical limits to quantum computations.

According to CITP lead researcher Dr. Pan-Phan Tran — a representative of two zone calorimeter laboratory at Tsinghua University — quantum computers analyzing superpositions of a time-symbol (top equation) whose states are so close that they are distinctly separate and present during the experiment and which moves when moving the calor
g