DPG publishes Coll­ec­tion on Phy­sics

The 2025 coll­ec­tion Phy­sik: Erkennt­nis­se und Per­spek­ti­ven offers a com­pre­hen­si­ve over­view of phy­sics within the frame­work of the Deut­sche Phy­si­ka­li­sche Gesell­schaft (DPG) while also loo­king ahead to future deve­lo­p­ments. More than 200 phy­si­cists from a wide ran­ge of disci­pli­nes pro­vi­de insights into the world of phy­sics – from the explo­ra­ti­on of the smal­lest par­tic­les to the vast­ness of the uni­ver­se. The chap­ter titled “Wir­kung – Anwen­dun­gen, Inno­va­tio­nen und gesell­schaft­li­che Rele­vanz” also high­lights the topic of Quan­tum Sci­ence.

In addi­ti­on to con­tri­bu­ti­ons on qubits and Quan­tum Com­pu­ters, the antho­lo­gy includes a sec­tion on Quan­tum Com­mu­ni­ca­ti­on (pp. 203–204). Prof. Dr. Chris­toph Becher and Prof. Dr. Harald Wein­fur­ter explain the advan­ta­ges of Quan­tum Com­mu­ni­ca­ti­on for secu­re data trans­mis­si­on through Quan­tum Cryp­to­gra­phy and Quan­tum Tele­por­ta­ti­on.

At the cen­ter is the BB84 pro­to­col, pro­po­sed in 1984 by Charles H. Ben­nett and Gil­les Bras­sard, which ser­ves as the foun­da­tio­nal prin­ci­ple of Quan­tum Key Dis­tri­bu­ti­on (QKD). Unli­ke clas­si­cal encryp­ti­on methods, who­se secu­ri­ty often reli­es on mathe­ma­ti­cal com­ple­xi­ty, Quan­tum Cryp­to­gra­phy is based on fun­da­men­tal laws of phy­sics and thus enables veri­fia­ble secu­ri­ty. The aut­hors explain the quan­tum-mecha­ni­cal prin­ci­ples and the bene­fits of dis­tri­bu­ting ent­an­gled sta­tes – a phe­no­me­non that also enables Quan­tum Tele­por­ta­ti­on, i.e., the trans­fer of the sta­te of one par­tic­le to ano­ther, regard­less of the distance bet­ween them. This allows for the net­wor­king of Quan­tum Sen­sors and Quan­tum Com­pu­ters and, in the long term, the estab­lish­ment of Quan­tum Net­works. To bridge lar­ger distances, Quan­tum Repea­ters are neces­sa­ry; they crea­te ent­an­gle­ment bet­ween arbi­tra­ry pairs of nodes in the net­work, ther­eby enab­ling the secu­re dis­tri­bu­ti­on of Quan­tum Keys over long distances. More on tap-pro­of com­mu­ni­ca­ti­on through Quan­tum Com­mu­ni­ca­ti­on can be found in the DPG coll­ec­tion.

Source refe­ren­ces: https://www.dpg-physik.de/veroeffentlichungen/publikationen/broschueren-buecher/physik-erkenntnisse-und-perspektiven; https://www.dpg-physik.de/veroeffentlichungen/publikationen/broschueren-buecher/physik-erkenntnisse-perspektiven_bildschirm.pdf